Features Disable

The Lite version is full featured when it is loaded, but after a couple of days, the transposition option is disabled. The description of the product should include this fact - "full featured version is installed with Tuner* Lite but it will be disabled, unless you buy the upgraded version". Anyway, the tuner does respond well, and the basic version allows you to continue using the chromatic tuner, albeit with some nagging to upgrade.

Sax Teacher about tuning app - tuner & metronome