Hemingway - Hemingway App makes your writing bold and clear.
DOTKey - 21st century typing for 21st century devices
Grammarly - Clear, effective, mistake-free writing everywhere you type.
Logitech Bluetooth Multi-Device Keyboard K480 - Whilst the keyboard functionality itself is quite basic, the ease with which you can switch between devices, and the added cradle for supporting tablet and/or phone make this a useful keyboard for anyone wanting one keyboard to rule them all.
Write App - No-distraction writing tool for your productivity.
Image Search Keyboard - Search Google Images right in your keyboard