Mobile App Design: UI/UX, function and prototype design.
Mobile App Development: Front-end and back-end design and development.
Mobile App Server: API, server and database development.
Mobile App Maintenance: Lunch, update and maintain mobile app.
Android: Android Studio, Java, Kotlin, XML
iOS: Xcode, Swift, C#.
Windows: Web design and web server development and maintenance.
Wearable: Other software developmement and algorithm design.