Hello, As per my understanding you want social networking application that will connect one user to another. I can surely develop the application where you can make the letter for your friend and then after finishing the letter the app will generate the ink that you can share via wechat to your friend.
I having strong coding experience on Swift 4.0, Android Studio, JAVA and Objective C, with backend development on Parse, Firebase, PHP/MYSQL.
I am a mobile app developer with 8+ years of experience developing mobile applications on Apple IOS and Google Android platforms using latest trends and supporting the latest operating systems, hardware and device model
I have strong hands on Xcode IDE(Objective-C, Cocoa, Cocoa Touch), Eclipse IDE, Android SDK, ADT Plugin, Java Programming, J2EE, HTML, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI customization and many more.
Let's connect soon for discussion.
Awaiting response.
Best Regards,
Romesh