Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
InTouchApp Firefox Extension - Save contacts & data from websites to your phone
KDE Connect - Integrate Android with the KDE Desktop
Mustbin - Everything in one place. Whenever you need it.
Monect - Make the best use of sensors on smart device to control PC, simulate steering wheel, game-pad...
ArchiviCo - An easy way to store your important documents