Coding KB is a productivity keyboard aimed at developers. It has been designed to speed up coding in Swift & HTML (other languages to come).
NextApp Technical Keyboard Alternatives
NextApp Technical Keyboard is described as 'The NextApp Technical Keyboard is a derivative of the AOSP keyboard, with added arrow keys and other special keys, and a slightly tweaked QWERTY layout that is closer to that of a PC Keyboard' and is a Mobile Keyboard in the os & utilities category. There are more than 25 alternatives to NextApp Technical Keyboard for a variety of platforms, including Android, Android Tablet, iPad, iPhone and F-Droid apps. The best NextApp Technical Keyboard alternative is HeliBoard, which is both free and Open Source. Other great apps like NextApp Technical Keyboard are FUTO Keyboard, FlorisBoard, OpenBoard and AnySoftKeyboard.