Slope angle meter. Simple and easy to use. White or black. iPhone or iPad. Put it down on the slope and see. No advertising on the main screen. No begging for money. Triple-tap the screen to calibrate a zero level.
Slope angle meter. Simple and easy to use. White or black. iPhone or iPad. Put it down on the slope and see. No advertising on the main screen. No begging for money. Triple-tap the screen to calibrate a zero level.