When trying to utilize on my iPhone 4S, I found it difficult to use due to the rapidly changing readings. If the reading were slowed down and dampened by averaging several reading before updating the display it might be salvaged. I could not determine it accuracy because of the unsteady readings.
Not completely terrible, but it has it's problems. I need to angle many things all. So while prepping the other items to angle, I'll set the phone down with the app open and it'll get confused on which way is up. Therefore, forcing me to close out the app and reopen it.
Use your iOS device to quickly find multiple angles. Features: - measure an angle on lateral movement - measure an angle on vertical movement - ability to calibrate (set to zero) - ability to reset the gyroscope - ability to enable max angle indicator - universal app works on iPads, iPhones, and iPod touches - retina display ready for retina enabled devices