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modify an android app

$250-750 USD

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$250-750 USD

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Hello every i have an app built by android studio, it is simple invoicing app that works online with PHP and MySql back-end, means it works OnLine. i would like to add offline feature and sync with internet is available or sync is requested. thanks
ID Proyek: 18712525

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Best solution for you is Realm db please contact me. I am open to start work immediately. If you hire me, I will do my best and bring you excellent result. Let's discuss more, Thanks. Past projects: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL]
$294 USD dalam 15 hari
5,0 (49 ulasan)
6,5
6,5
23 freelancer menawar dengan rata-rata $673 USD untuk pekerjaan ini
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Hi there, Your project recruiter "Michelle" invited to place a bid on your project. I have read initial brief & happy to add new features in your existing App, so can you share link of your App/source code along with the additional features? Kindly ignore the bid amount & once requirements are finalized, I will then give you firm bid. Look forward to hearing from you. Regards, YK LEADconcept
$705 USD dalam 15 hari
5,0 (109 ulasan)
9,1
9,1
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Hi, I hope you are doing good. I have gone through with the project requirement and have understood that you want us to build android invoice app having feature like user can generate invoice offline and that can be sync with live php web app when it connects to internet. I do have few queries on your requirement: 1. What other features you would like to integrate in the app? 2. How many levels of user login will be there ? We can certainly deliver a quality app as per your need in quick time. We will follow all coding and security practices. I would request you to please share working web URL so that we can review the functionality. Please consider we do not need any upfront payment you can just escrow the milestone payment can release when relevant milestones are complete. Please open PMB so that we can discuss more about the project in detail. Looking forward to hear from you! Kind Regards Nick Owebest
$740 USD dalam 20 hari
4,9 (332 ulasan)
9,2
9,2
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Hi, I've read the project description and definitely can modify the Android mobile app. I'll provide you with the highly-skilled & professional UI/UX, HTML/CSS, Java, PHP, Swift, React, JScript, MySQL, front & back-end web & app development services. My skill set perfectly matches your requirements to update & maintain the platform. We've got a big team of developers and designers and we always interested in good and stable projects to be done, so we can build relations on top of it to work for long. We're already working with many enterprise level clients and delivering things in same technology in the US, UK, UAE, China & Australia and we can give you our client’s reference and you can talk to them. We’ve built many web platforms and sites also IOS & Android mobile apps. Let's discuss in details, explore your system & then come up with the precise time and cost. We offer technologies like HTML/CSS, UI/UX, Bootstrap, MySQL, Git, React.js, Angular.js, CRM, JavaScript, Vue.js, MongoDB, JQuery, JSON, AJAX, Node.js, PHP, CI, Laravel, Objective C, C#, Java, Rest API, ASP.Net, MVC, AWS, Agile, Software Architecture, WordPress, Swift, React native & Ionic. Please message us to discuss further. Also, we can show you our past work, strength & skills of our company to give you confidence & believe in us for working together. Surely, we can revise the bid after a brief discussion. We provide lifetime free support for our work and always believe in long-term relations. Cheers.
$1.300 USD dalam 10 hari
4,9 (445 ulasan)
9,3
9,3
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modify an android app Nice to meet you. Here is my profile, you can see my experience here. https://www.freelancer.com/u/zhandong0217.html I saw you are going to build the investor portal. I am an honest and serious mobile developer who has 5+ years of experience. I am sure I can complete your project within your time and budget beyond your expectation. If we work together, I will promise the following things: - Daily Update of the project. - Deadline and high-quality delivery Guarantee. - Free support for 6 months after project completion. Regards.
$588 USD dalam 10 hari
5,0 (117 ulasan)
8,5
8,5
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modify an android app Hello, I read your description and got what to do. I am looking forward to discussing more for your project. I am ready now, please message me to start your project. I have 7+ years of experience in this field I am proud of 100% 5 stars and 100% completion rate. https://www.freelancer.com/u/mingah429.html From YueXi
$588 USD dalam 10 hari
5,0 (59 ulasan)
8,6
8,6
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Full Time mobile/website developer for 7 years. Hi. I gone through your description and understood what you want to modify an android app. Please feel free to send message if you want to work with me. I am ready to start soon. I will done good job once you hire me. Let’s make long term good business. Best Regards. Li.
$588 USD dalam 10 hari
5,0 (151 ulasan)
8,4
8,4
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hi there, I can implement the offline capability in your app. Please check my reviews and let me know . Kind regards
$764 USD dalam 14 hari
4,8 (116 ulasan)
8,3
8,3
Avatar Pengguna
Nice to meet you. Hope you are doing well. I have checked your project description carefully and very clear about that. I am a senior Android developer has 7+ years of good experience. I will never make you disappointed. If you give me a chance to work with you, I will provide you with high-quality work only for you daily. I am always ready for you to discuss your project. Looking forward to working with you. Best Regards.
$588 USD dalam 10 hari
5,0 (22 ulasan)
7,8
7,8
Avatar Pengguna
Hello, How are you? I have read your requirement carefully. I am a senior Android app developer. I have rich experience in online sync status by background service and multi-threading. Also, save data into database when offline, and sync it if network is available. Hope to discuss more detail via PM. Thanks and regards, Peng
$588 USD dalam 10 hari
5,0 (63 ulasan)
7,8
7,8
Avatar Pengguna
Hi. My name is Qi-feng Jin and I am from China. I am really interested in your project so I would like you to send me a message for more discussion about your project I have been working on Android app development for more than 6 years as a developer and project manager. You can visit my profile page to know more about myself. https://www.freelancer.com/u/GoodJob4W I would like to discuss about the project in detail and then estimate the exact time and cost for the project. It means my bid price is not the total price for your project. Best services: 1. Fast/easy communication 2. Project discussion in detail to save time and money while developing app 3. Bug fixing and update in no time 4. Bug free release after dedicated test 5. Technical support and update after project finish Development Languages and Sofewares: - Android/Java in developing in native - Php,html,css,javascript for backend api - PHP, JavaScript, Html, Css, MySql database … for server backend and admin panel development - UI/UX design based on google material design guidelines I have been developing more than 35+ Android apps for more than 4 years so I can suggest you the best solution to implement your project simple invoicing app that works online with PHP in the proper time frame. Please send me a message so we can discuss the project in more detail. Thanks.
$588 USD dalam 10 hari
5,0 (46 ulasan)
7,9
7,9
Avatar Pengguna
How are you I am a professional mobile app developer and have full experience for 6 years. I read your project description carefully and I understand what you want. Now i am ready to start your project and until you are satisfy, I will provide full service and do my best for you. Please contact me. I value my credit and will be kept the promise with you. I hope you agree my proposal and will be accomplish it quickly and quality so that you 're satisfy about it. Thank you very much.
$588 USD dalam 10 hari
5,0 (44 ulasan)
7,6
7,6
Avatar Pengguna
I am an expert Android developer with good backend PHP/MySQL skills. I have worked on online/offline sync apps and I am very familiar with sync apps. I can add a standard offline feature to your app. Kindly message me to discuss details.
$300 USD dalam 4 hari
4,9 (194 ulasan)
7,9
7,9
Avatar Pengguna
Hi there I am very much expertise with this task and I can assist you with the same Please message me to start the conversation Thank you Preet
$1.058 USD dalam 7 hari
5,0 (51 ulasan)
6,9
6,9
Avatar Pengguna
Hi! I can implement this offline syncing logic using latest Android arch component 'WorkManager' for best results. I am experienced Android application developer having solid grip on Android majors like Android SDK,NDK,Material designing,RxJava, Dagger, DataBinding Google Maps & APIs with customization, Firebase,Localization, Retrofit, BLE devices and IoT technology etc. I am quick and i write code in efficient and clean way (work samples will be given on request). Contact me and lets discuss more details to establish a long term collaboration. Thanks
$823 USD dalam 5 hari
5,0 (85 ulasan)
6,6
6,6
Avatar Pengguna
Hello! Please consider my bid for this project and for more contact me via message here,for more check my profile for reviews and here is my short Summary.. Well I am an Experienced Lancer,Check My Portfolio, doing work from a long time for other websites like odesk and elance along with other online markets. Professionalism , Truthfulness,hard work and dedication for your project will be my plus for you. Rates and conditions are adjustable....For More Info or Details or even Getting know my potential Private Messages are more than Welcome.... Thank you
$705 USD dalam 10 hari
4,7 (5 ulasan)
4,3
4,3

Tentang klien

Bendera SAUDI ARABIA
makkah, Saudi Arabia
5,0
2
Memverifikasi Metode pembayaran
Anggota sejak Jun 8, 2005

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