Ios location based applicationPekerjaan

I'm looking for a knowledgeable developer who can help me integrate SDKs on both iOS and Android platforms. Key Requirements: - Extensive experience with SDK building and integration on both iOS and Android. - Strong understanding of software development kits and how they can be implemented. Please include details about your experience with SDKs on both platforms in your application. This is for a migration project. Users have version 1 of an application installed. We have changed the backend and frontend stack and are launching version 2. We want our active users to be logged into new app (upon updating) without logging in again. Our SDK needs to detect old active user and share specific parameters via SDK to new app so a flow can be trigge...

...enhancements to my Streamlit application. The primary task is to adjust the chat textbox's current position from its top location to the bottom of the layout. There are also other improvements to be made regarding application layout and performance. Ideal skills and experience: - Proficiency in Streamlit - Proven experience in UI/UX design - Understanding of application performance optimization Application Requirements: - Moving the chat textbox to the bottom - Enhancing the overall application layout - Improving application performance Freelancers interested in this project should include examples of past work—particularly Streamlit applications they’ve worked on. This past work will help me observe the quality and ...

...knowledgeable mobile app developer to upgrade my current application for both Android and iOS devices. Here's what I specifically require: - Android OS compatibility: The upgraded mobile app should work flawlessly on Android 10 and above versions. - iOS Compatibility: I want the upgraded version to run seamlessly on iOS 13 and above versions. In terms of technical skills, it would be ideal if the freelancer has: - Experience in mobile application developments for both Android and iOS platforms. - Familiarity with the latest OS updates and their requirements. - Knowledge and experience with performance optimization strategies for mobile apps. The objective here is to upgrade our mobile app to be compatible with the latest versions of ...

I'm looking for a skilled developer with extensive ServiceNow experience. You will need knowledge of the ServiceNow Application Development with specific expertise in integration. Key Tasks: - Develop and maintain Service Now applications and integrations. - Work closely with business analysts, developers, and other stakeholders to design and implement solutions that meet the needs of the organization. - Write efficient and high-quality code that is scalable and maintainable. - Develop and maintain technical documentation for Service Now applications and integrations. - Participate in code reviews and collaborate with other developers to ensure code quality. - Ensure that Service Now applications are stable, scalable, and secure. - Troubleshoot and debug issues in Service Now...

I'm looking for a Flutter expert to build a minimalist notes module that supports Android, iOS, and Web platforms in flutter UI Design in flutter Key requirements: - Develop a Flutter UI with a minimalist design - Implement functionality for creating, editing, and deleting notes - Ensure the module works seamlessly across Android, iOS, and Web platforms Your key responsibilities will be: - Understanding my requirements and translating them into a functional Flutter module - Conducting thorough testing to guarantee smooth functionality - Ensuring the module is user-friendly and visually appealing Ideal skills and experience include: - Proficiency in Flutter and Dart programming

I want to create a "Distributor app" package in flutter which will function as a background service that can receive notifications from the unified push server. The package can stay connected to the server even when the user isn't actively using the app, so that it can receive notifications at any time The flutter package will depend on the protocol used by the unified push server...will function as a background service that can receive notifications from the unified push server. The package can stay connected to the server even when the user isn't actively using the app, so that it can receive notifications at any time The flutter package will depend on the protocol used by the unified push server(UPS) Protocol The code works on these platform: IOS and A...

BookBook: Field Sales Representative (B2B) - Beauty and Wellness Industry Location: Central London Job Type: Full-Time, Initial One Month Trial Salary: £2,000 per month net with performance-based incentives About BookBook: BookBook is revolutionizing the beauty and wellness industry by connecting high- quality salons with tech-savvy consumers through our innovative mobile app. We're looking for dynamic and driven Field Sales Representatives to join our team and help expand our network of outstanding salons and increase app engagement. Job Description: As a Field Sales Representative, you will be responsible for visiting approximately 50 top-tier salons daily, promoting our unique platform, and securing new partnerships. You will play a key role in driving our expan...

I am in need of a skilled web designer to create an engaging, user-friendly travel app. - The app is to be available on both iOS and Android platforms. - The key features needed are: - Flight booking - Hotel booking - Trip planner Ideal Skills/Experience: - Proven experience in designing and developing mobile applications, particularly on iOS and Android - Strong understanding of UX and UI design - Prior work on e-commerce, booking platforms, or travel-related apps would be a big plus. Looking for a designer who can take my vision and turn it into a reality, creating a visually appealing and functional app that users will enjoy.

I'm looking for a skilled fullstack developer with a strong background in JavaScript to help me with a web application project. The web application will need a database (preferably a SQL database) integrated into it. Key requirements include: - Proficient in JavaScript - Experience building web applications - Ability to work with databases - Previous experience in fullstack development Please detail your experience and provide examples of similar projects you've worked on.

I'm seeking for ready-made side load APK for Big Nox for GPS Spooling with live tracking. It's able to upload the route history to run on it with speed settings, and geofencing. It's must be able to run on android, ios or emulator Please read seriously before you put in your proposal.

NO AI based response please, i will ignore your proposal. I'm seeking a skilled Flutter developer to build a new featured from a existing semi built social media app by another team. The app is desired to be user-friendly and interactive, operating smoothly on both iOS and Android platforms. The app needs to pass google and apple standards and need featured like content sharing and market place and integrate AI/ML use case. Experienced developers with a strong understanding of Flutter and previous work in social media application development will be given priority. Ability to deliver high-quality work within a set timeline is essential. I am looking for a direct freelancer who is passionate in coding and solving problem not a outsourcing team.

...exercise techniques, ideally someone who has experience in filming sports or fitness workouts. You will be assisting me in creating workout content for my YouTube channel primarily. Your job will be to film my workout sessions, approximating around one hour 3 nights a week: Sunday, Tuesday and Thursday from midnight to 1AM. To start on Sunday April 28th if possible. Sunday May 5th at the latest. Location: Maple Grove, Minnesota Key Objectives: - Emphasize the technique aspect of the exercises - Create engaging videos suitable for social media sharing - Ensure high-quality video for YouTube uploading Desired Skills and Experience: - Experience in the sports or fitness industry - Proficiency in filming and editing - Understanding of YouTube’s video requirements Guidelines ...

As a business, we are seeking a competent full-stack developer with expertise in JavaScript, PHP, Node.js and MySQL. Key Requirements: - In-depth knowledge of JavaScript and PHP as the primary coding languages, complemented with MySQL for the database management and Node.js for backend services. - Experience in integrating and working with APIs. The project demands the incorporation of Amazon Comprehend and OpenAI. So, the ideal candidate must be well-versed with these. - The ability to work with little to no guidance and have a problem-solving attitude. - Proven record of past successful projects involving similar stacks and APIs would certainly be advantageous. This job is more suited for someone eager to explore and learn while contributing positively to the project. As an agile te...

...and Reactive Native App. The ideal candidate will have extensive experience in Android (Java/Kotlin) and iOS (Objective-C and Swift) and, importantly a sound understanding of Reactive Native App. - Main Function: The core purpose of this software is to facilitate communication between the IoT device driver (Java/Kotlin) and Reactive Native App. - Required Capabilities: The software should be capable of device interaction, more specifically device control. - Device pairing, data synchronization are important, but the primary focus should be on device control functionality. Skills Needed: - Experience in developing software for IoT devices - Proficiency in Android (Java/Kotlin), iOS(Objective-C and Swift) - Understanding of Reactive Native App development - Ability to f...

...information for a web application. This database should also support user authentication and permissions with different access levels. Requirements: - SQL Database: You should design a relational database to store customer information. - Web Application Integration: The database should be integrated into a web application, allowing for seamless storage and retrieval of customer data. - User Authentication & Permissions: The database should support different access levels, ensuring that only authorized users can view, edit, or delete customer information. Skills and experience needed: - Strong SQL & Database Design skills: You should be proficient in SQL programming and have experience designing databases for web applications. - Web Development: Prior expe...

Need to develop two different ios app on WatchOS Core animation

I am seeking a professional videographer who specializes in event coverage, specifically for conferences. Tasks Include: - Capturing the essence of the conference, impactful moments, and overall event atmosphere - Prioritizing recording keynote speeches - Highlighting panel discussions and networking sessions, which are integral parts of the event The ideal freelancer for this project should have: - Valuable experience in filming corporate events, especially conferences - A keen eye for detail to ensure all important aspects are captured - The ability to review and identify key points during coverage for a compiled highlight reel In submitting your bid, kindly share samples of your previous work related to conference coverage or similar events. I look forward to seeing your work and...

I require a professional who can develop a detailed sales forecasting report leveraging Power BI. The project needs to be done within one day. Key Requirements: - Utilize data from Excel spreadsheets for the forecasting. - The sales forecast should be detailed, breaking down sales by product/service. - The forecasting model should be based on regression analysis. Ideal Skills: - Proficiency in Power BI. - Strong experience in Excel data analysis. - Proven track record in regression analysis for sales forecasting. - Ability to work under tight deadlines.

I need a skilled developer to create a web-based Clover application focused primarily on payment processing. Key aspects: - The core functionality will revolve around payment processing. - It will accept and integrate payment through Alipay+ and WeChat Pay. Ideal qualifications: - Experience developing web-based applications. - A deep understanding of payment processing applications. - Prior experience integrating both Alipay+ and WeChat Pay would be a significant asset. - Knowledge of Clover platform is required. - Attention to detail and ability to meet deadlines are vested interests.

I'm looking for a proficient developer to create an event page for my organization's website. We have pre-installed an event plugin and need expert help to post the f...for my organization's website. We have pre-installed an event plugin and need expert help to post the first event and test the functionality of the page. The page should be coupled with an online ticket purchase option. Key Responsibilities: - Load our first event on the page - Incorporate ticketing functionality - Ensure everything runs smoothly Page Requirements: - Detailed event info - Location details and maps Ideal Freelancers Should: - Have significant experience in website development - Provide detailed project proposals outlining their plan, milestones and timeframe Let's make our f...

I am seeking a proficient web data scraper to extract specific information from a prominent South African property portal and organize it in an Excel spreadsheet. Key Project Requirements: - Extracting and organizing the following data: property information (e.g., price, location) and size. - No need for continual updates, just a one-time extraction. Filtering Criteria: - The data to be scraped should be from a particular property portal and should extract information like : property type (industrial/retail/office), size, address, price. Ideal Skills: - Proficiency in web scraping techniques and tools. - Strong experience with Excel and organizing large sets of data. - Familiarity with the South African property market would be a plus. The goal of this project is to obtain a ...

...design and build an app for my beauty salon, compatible on both iOS and Android platforms. The app should be intended for use by both salon clients and staff. Here's what the app should include: - A user-friendly sign-up process - An appointment booking feature, allowing clients to select their preferred stylist and schedule their visit directly from the app - An integrated coupon system for special offers and promotions - A service selection menu, where clients can view the range of services we offer The ideal freelancer for this project should have: - Extensive experience in dual-platform app development - Previous experience working on booking systems or similar projects - A strong understanding of UI/UX principles for both iOS and Android platforms - The abil...

I'm seeking an experienced React Native developer to integrate Google Sign-In functionality into my Expo app for both iOS and Android platforms. The feature must fetch the user's email address, user id upon successful sign-in. This is a simple straighforward thing. One app that has google sign in, feature [On clicking the button on app, an in-app browser (modal) opens with google sign in page.] Key Responsibilities: - Integrating Google Sign-In feature into an React Native Expo app which can open on both iOS and Android platforms. - Retrieving user's email address from their Google account upon successful sign-in. Requirements: - Proficient in React Native. - Strong understanding of Google Sign-In authentication process. - Experience with Expo. - Knowledge o...

I'm seeking a highly skilled researcher who can provide me with detailed information on the location of secondary schools with sports facilities within a 10-minute walk of zones 1 and 2 of the London Tube. An example of 2 schools would be expected before any contract starts, please do not provide before being contacted as I will share the list. Key Requirements: - Research: This project demands high-quality research skills. You will need to locate and verify the schools that meet our criteria. - Mapping: Proficiency in using online mapping tools is essential. - Data Management: The final report should be in Excel format. Experience handling and analyzing data in Excel is a must. - Need to confirm they have sports facilities - Data needed is Name of school - distance to tub...

I'm seeking practiced developers to create a game app that works seamlessly on both iOS and Android platforms. Experience in building cross-platform mobile applications is essential. This game app needs to feature: - Engaging, user-friendly interface - Robust back-end to handle multiple users - Capability for in-app purchases Applicants who have already developed gaming apps with in-app purchase capabilities will have a clear advantage. My expectations revolve around quality work and timely delivery. I'm eager to collaborate with innovative minds to bring this project to fruition.

...nRF52840 DK. Continuously collect pressure data from the sensors with low power consumption for extended battery life. Communicate pressure data wirelessly to a smartphone application via Bluetooth Low Energy (BLE). Allow for configuration and interaction with the pressure sensors through the mobile app (optional). Key Requirements: Expertise in nRF52840 DK development, including sensor interfacing, BLE communication, and low-power programming. Strong understanding of pressure sensor selection and integration for accurate and reliable pressure readings. Experience with mobile app development for BLE communication (Android or iOS) is a plus. Familiarity with power optimization techniques for extended battery life in embedded systems. Excellent communication and collaborati...

I'm looking for a skilled developer who is highly experienced in creating social media apps for Android and iOS platforms. The app should be rich with high-end features and satisfying user experience. Key Requirements: - Chat function: Users should be able to communicate with each other in real time. - Photo sharing: App should allow users to share pictures with their connections. - Live video streaming: Users must have the facility to stream live videos and view others' streams. - In-app purchases: I'd like to include various products or services that users can purchase within the app. - Push notifications: The app should send updates and alerts to the users with comprehensive push notifications. -many other new features which involve aiml features Extra fea...

I am looking to expand my retail business by acquiring a list of both B2B and B2C leads for potential marketing efforts. Key Deliverables: - Generation of a database of high-quality leads, both B2B and B2C, within the retail industry. - The leads need to include both email contacts and phone numbers. Target Demographics: - The acquired leads should be segmented by age, gender, and location, for more refined marketing strategies. Ideal Skills and Experience: - Demonstrable experience in lead generation, particularly in the retail sector. - Proven track record of acquiring high-quality B2B and B2C leads. - Proficiency in data analysis to segment leads by various demographics. - Strong communication skills to ensure effective lead acquisition and management. This project is cruci...

...user interface design and navigation of our Talking Statues app, available on Android and iOS. Key Tasks we may need: - Improve the layout and organization of buttons and menus. - Enhance the visual hierarchy and clarity of information. - Simplify and improve the ease of navigation between different sections. - Make a new skin to make it look more exciting for target group - Improve presentation on homepage and app store Ideal Skills and Experience: - Proven experience in mobile app development, specifically for Android and iOS. - Strong portfolio showcasing previous work with user interface design and navigation improvements. - Experience with enhancing the user experience of an existing application. - Excellent understanding of human-computer interaction and use...

The freelancer needs to visit the location and get the form filled, stamped and signed from the HR department. The following requirements are mandatory: We want the questionnaire to be filled and clear the Photographs. 1. Photographs of the Inside and Outside of the facility ( Signboard with IA name on it, Departments). 2. Photographs of the registration document of the facility. 3. Photographs of any other supporting document that is present there. In case, they refuse to provide the information make sure to take refusal in writing. Otherwise, manage to take the name, contact and designation of the person who refused and visiting card if possible

I am looking for an expert in Flutter app development who can create a functional app for both iOS and Android platforms. The main function of the app will be to scan URLs and extract information from them. This feature setup should be executed such that the app's users can use this function to gather information about potential scams, issues, or malfunctions connected to a particular URL. Ideal Skills and Experience: - Proficiency in Flutter development across multiple platforms. - Experience in creating URL scanning functionality. - Understanding of how to effectively extract and categorize scam, issue, or malfunction-related information from URLs. - Previous work with creating offline storage for the extracted information. Your bid should outline your experience with Fl...

Hello I need to secure my reactjs application for production

I'm looking to create an e-commerce platform that will function across both Android and iOS systems, with a specific requirement for Google Pay integration. Key Points: - Development of a robust e-commerce mobile application - Compatibility for both Android and iOS - Seamless integration of Google Pay - User-friendly interface and secure payment systems Ideal Skills and Experience: - Proficient in mobile app development for both Android and iOS - Prior experience in creating e-commerce platforms - Expertise in integrating payment gateways, particularly Google Pay - Strong UI/UX design capabilities - Excellent understanding of security protocols and measures

Hi. I have an app that is becoming very popular. We created videos on how to do certain things with the app to help users get started. The videos are now out of date. We would like to have a professional video created, (preferably with out spoken words), to accurately describe how to accomplish certain tasks within the app. We anticipate each video will be 1 ...with out spoken words), to accurately describe how to accomplish certain tasks within the app. We anticipate each video will be 1 to 2 minutes long. We want to start with one video to see how this goes, but could definitely use 12 or more to accurately help users. The app is for golfers and golf tournament managers. Fairly straight forward, but also powerful and can be complex. It's on iOS and Android, and ...

I have a simple Wix website, and would like to create sub domains of all locations in the UK. Towns, cities, etc. I would like somebody to set this up, and advise how I can run it, edit the pages, add pages etc. This needs to be done to a high standard, and I just want it setting up so that I can run it.

I'm in need of a skilled React Node developer to execute both front-end and back-end development of a new web application. Responsibilities will include but are not limited to: 1. **Front-end**: Developing user-friendly interfaces that are responsive and function across different browser environments. 2.**Back-end**: Building a scalable and robust architecture that can support future add-ons or updates. Although the functionalities of the web application were initially undefined, flexibility and adaptability will be paramount to this project as additions may be made as we progress. The ideal candidate should have proven experience in React Node and the ability to work independently. Effective communication skills and the willingness to provide updates on progress reg...

...The primary task will be to input shipment data from Bills of Lading (BOLs) into an Excel file (.xlsx). The data must be organized based on specific categories found in the BOLs. Therefore, attention to detail and a keen eye for categorization is crucial. NOTE: BOL's shipped to the same location (multiple BOL's) must be added together on the same line. EXAMPLE: 1/1/2024 (5 Pallets) To Store #2595 2/1/2024 (4 Pallets) To Store #2595 NOTE: There are two types of BOL's a. Multiple Stop BOL"s. These will have 4-5 store location drops / entries to be made. b. Single Stop BOL's. These will be drops of 28 or 30 pallets at one location. I attached examples of the two types of BOLS as well as the Spreadsheet I...

...The goal is to develop a dispensary directory with map and list views, similar to Weedmaps. Key features include geolocation-based search and backend management for dispensaries. Reference: The core features of this module include: 1. An interactive map displaying dispensaries based on the user's geolocation or search criteria. 2. A list view of dispensaries with the ability to filter and sort by location and other parameters. 3. Integration with third-party APIs for map functionality (e.g., Google Maps or Mapbox). 4. Backend management for dispensaries to register and update their location, contact information, and other relevant details. 5. Responsive design to ensure compatibility across devices. Expected Deliverables:

I'm in search of a skilled Social Media Manager, primarily focused on Instagram and TikTok platforms. Key Responsibilities: - Content Creation: You'll be responsible for crafting engaging and relevant content that resonates with our brand's target audience. - Posting and Scheduling: You should have experience with scheduling tools and know the best times to post on each platform. - Audience Engagement: You'll need to actively respond to comments, messages, and engage with followers to increase our brand's online presence. The primary goal of this role is to increase brand awareness. Ideal Skills and Experience: - Proven experience managing Instagram and TikTok accounts for brands - Strong content creation skills - Proficiency with social media scheduling tools...

I need a ready made sample source code in React Native. - You should be proficient with React Native development. - Prior experience with iOS and Android applications is a must. - I appreciate fast work without compromising quality, as this project is ASAP. - Even though the brief doesn't say so, creativity and initiative to add innovative features are highly valued. Let's push boundaries together in this project. I'm excited to see your proposals.

I need a skilled developer to create a custom autofiller application for me. Please skip the questions on the platform that were not answered.+ 1. After every update/new change build number , lets change autofiller to 4.0 2. After every change moving forward move the build number up a little 4.1,4.2 3. Change “Refresh button to “ Button that says “Refresh” 4. Integrate SQUARE POS API ..SYNC Name. DOB, address . number to (POS) add to customer list 5. Change background color of entries window to #cee4ed 6. Make autofiller open base pdf so users can change base via adobe so form isn’t broken and remove global autofiller programming a. date formatting, checkboxes should be working after this 7. Add Na to interpreter output of pdf when patient selects ...

...skilled data curator to gather historical OHLCV data for a specific list of stocks. The data range runs from 1st January 2013 to 19th April 2024. Key requirements for this project are: - Expertise in data curation, specifically in regard to financial data. - Familiarity with CSV (Comma Separated Values) format, as this is the desired output format. - Stock data will be sourced from a specific location that I will provide. - Proficiency in compiling data is required. I will need one csv file for each stock (symbol). The CSV files would have the following columns (please do not alter the casing of the column headers - all characters should be in lowercase): - symbol - date - open - high - low - close - volume Data source: Instructions: 1

...a specific QR code (unique for each location) into the design that that you will create. The design should be captivating, visually appealing, and blend in well with our colours (please see logo) As it will be placed at the cash register, it should also be suitable for a small (6x4 inches) size without compromising visibility and readability. Ideal freelancers should have the following skills and experience: - Expertise in graphic design - Proven experience designing signs or stickers - Strong understanding of QR code integration into design - Ability to communicate and deliver concepts effectively - Knowledge on how to design for small-scale formats and different materials Please include samples of previous sign/sticker design work in your application. Elements to in...

...that would seamlessly integrate with our custom CRM system via WhatsApp. Our main focus is to enhance customer interaction and management. Here are the features we're looking for: • Integration with CRM: The system should get along with our CRM to manage customer interactions effectively. Therefore, a deep understanding of both and CRM integrations is vital. • QR Based Integration: A unique feature we want to incorporate is leveraging QR codes for an enhanced user experience. The ideal developer should be knowledgeable about platform, CRM systems, WhatsApp business API and QR codes. In depth experience in similar projects would be highly beneficial. Relevant skills in JavaScript, Node.js or other related technologies are appreciated. If you're

I'm in need of a skilled logo designer who can input their creativity into my project. I'm particularly interested in a designer who specializes in modern designs and can effectively incorporate my chosen color palette into a text-based logo. Key Responsibilities: - Discuss and understand my brand's identity - Incorporate a predefined color palette into the logo - Design a modern, text-based logo Skills and Experience: - Proficiency in Adobe Photoshop and Illustrator - Previous experience in logo design - Strong portfolio that exemplifies a modern aesthetic - Excellent communication skills to understand and realize my vision. I look forward to collaborating with a vibrant and versatile logo designer to bring my vision to life!

...develop a dispensary directory with map and list views, similar to Weedmaps. Key features include geolocation-based search and backend management for dispensaries. Please refer to this website for reference: The core features of this module include: 1. An interactive map displaying dispensaries based on the user's geolocation or search criteria. 2. A list view of dispensaries with the ability to filter and sort by location and other parameters. 3. Integration with third-party APIs for map functionality (e.g., Google Maps or Mapbox). 4. Backend management for dispensaries to register and update their location, contact information, and other relevant details. 5. Responsive design to ensure compatibility across devices

I'm looking for a highly skilled and ethical individual who can assist me in monitoring phone activity, namely incoming calls and social media interactions on both iOS and Android platforms. This task does not specifically demand a certain coding language but experience and proficiency in multiple languages might be beneficial. Key responsibilities include: - Monitoring and recording incoming calls - Accessing and tracking social media activities Please note, applicants must uphold and respect all legal and ethical boundaries while pursuing this assignment.

A website that is a small medical dispensary, with four users: - the manager - doctor - Receptionist - the patient - The manager can create, modify and delete a new clinic and set the products offered by the clinic and their prices. - The manager can create, edit and delete a new employee (doctor, receptionist). - The receptionist can create, edit and delete a new pati...the available appointments and book an appointment with the doctor. - The patient can see his previous visits to the doctor. - The doctor can enter the diagnosis for the patient and choose the services that were provided to the patient. * Everyone can see and modify the personal data of their account. * Everyone can log in from the home page . Also some web pages that would be integrated in application provided ...

This is a long term project that requires previous experience with rust programming language (similar to C / C++) for Solana programs (Block chain based smart contract). The program is a type of AMM that can receive tokens as liquidity and allow user to swap tokens with the program directly. No frontend is needed. Specific details will be provided to relevant applicants. Please make sure you are familiar with and in your reply please tell me if you are familiar with the rust/ Solana development framework.

...skilled in creating mobile applications for Android, iOS, and Windows. The objective is to develop a service delivery app with specific features. I intend to create this application in a country where delivery service is not very developed. Additionally, online payment services do not exist. Through this application, I aim to offer people a way to order and purchase items that stores offer for sale through well-known platforms such as Facebook Marketplace or Instagram. Below are some important features of the application: - The application must have four types of user accounts: seller, administrator, buyer, and delivery person. Each account has different functionalities described below. - User registration and login. - The application must sup...