Typeeto - Use Mac’s keyboard to type on iPad, iPhone, Android, etc.
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Type2phone - Type2Phone: Use your Mac as keyboard for iOS devices
Sounds of Earth - Listen to relaxing ambient sounds of nature
Mocha Keyboard - Mocha Keyboard is a leading Bluetooth keyboard application for iPad, iPhone, and iPod touch.
Noizio - Feeling that the noise of the big city is too much for you to bear?