free
…1. Find a flat surface, 2. Hold your device upright (in portrait mode and home button at the bottom), put the bottom edge of the device on the flat surface, then press Calibrate button (the one with a target image on it) to calibrate the portrait mode. 3. Turn your device 90 degree clockwise (now it should be in landscape mode and home button on…
iHandy Level Free is a utility by iHandySoft Inc., for iPhone and iPod Touch.


