1. Over all im deleting this appI have had this app for five minuites and I got the D string and A string but I can not get C or G at all and I used the fine tuners then I played G string and it changed A string and I can not get it back in tune 30 minuites later with my A string still not in tune it snapped so I would not recomend this appIt says that I'm tuned but really I'm not.I didn't have a clue what this app is doingWill actually make untune your cello.I thought it was right until I started to play and my c string was way off.
2. Works really well, and because it shows that the note is too high, or too low, it makes it far easier to tune a cello than a tuner that just says what note the string sounds like.It help me out a lot... I'm not a pro with a cello... I am a guitarist for 20 years and I can tell that this tuned a cello right.
3. Work great for me.Most of the time it somewhat works but this time when I tried to tune my g cause it went very out of tune it wouldn't even tell me if it was flat or sharp then the string snapped.
4. So for the ones that said it detuned there cello maybe your ears are wrong or the cello is messed up or something.
5. The teacher that tuned it was wrong and off by a lot and was more a violin pitch.