all by use

Use your device to sign any kind of document

Use gestural shortcuts on the back of your smartphone

Use your imagination to solve unique puzzles

Use your smartphone with simple gestures

Use the official Google dialer app on any smartphone

Use your kissing skills to win over the girl of your dreams

Use your smartphone as a webcam for PC or Mac

Use the number guide to color these drawings

Use FBReader to read your comics

Use logic to find the mine's exit