Worked well helping me calculate the viewing angle from couch to TV. Simple easy I do recommend.
Not ready for people
Inf LTC
Cannot really measure ROM of a knee. A knee flexed to almost the point of pain cannot be held still enough to get a reading. Device works on fixed objects. But is too fussy to take a reading on something that has a pulse or breathes.
Ruined it
Jwebbpt
The new update ruined this app. Now it will only work if it used on perfectly still surfaces! Just go back to how it was before! Not all angles that need measuring can be perfectly still without even vibration.