Hi
For your Chat App please come to chat for further discussion as I am very sure i can help you in this as I have many similar experience in this.
We are IT company deals in App and Web development, App and Web designing, backend, SEO/SMM cloud services, and enterprise solutions.
We have knowledge of Xcode IDE(Objective-C), Swift, Eclipse IDE, Android SDK, ADT Plugin, Java Programming, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI design and much more.
We are proficient in PHP, CodeIgniter, WordPress, MYSQL, HTML, CSS, JAVASCRIPT, payment gateway integration, JQUERY and AJAX and designing through Adobe Photoshop, API, SSL, AWS, Linux and network administration, HTML, , open-cart, Mysql, database,laravel, CSS2/3.
Please come to chat