Apps

It is a handy text editor.
You can view and edit text files in any place, in most languages and character encodings, in the optimum mode!
It is a simple and stylish music player app.
You can play music / video files in various formats in any way you like.
It is a handy pedometer.
You can check exercise data (steps, calories burned, distance traveled) quickly whenever and wherever you need it.
It is a handy file manager.
File operation via Wifi network, File access on your iPhone/iPad/Android, File access cloud storages …etc.
It is a handy voice recorder.
You can record quickly anytime, anywhere you need.
It is a handy video camera.
You can shoot quickly whenever and wherever you need it.
It is a handy note.
You can take notes quickly whenever and wherever you need it.
It is a handy scanner app.
You can read texts, QR codes, and barcodes from cameras and existing photo files and use them for various purposes.
It is a simple but highly functional calculator.
It is a handy flashlight app.
It is a handy vibration app.