Wont work with IOS 9.2.1
Ive used both the free and advanced version of this app for several years and really like it. However, I just got a new iPhone with iOS 9.2.1 and none of the buttons work anymore. Previous reviews indicate other users have been having the same problem since about iOS 8. PLEASE UPGRADE IT!
Tslubfbxxslp about
TiltMeter, v3.7.1