YES

The free app is limited to standard guitar tuning plus two separate drop down D turnings. Lucky for me, and probably most guitar players, thats two more than I need.

This an amazing tool for precision tuning a fine acoustic instrument! My 40 year old Martin has never sounded better. Precision tone up the neck has never been better. The slightest improvement in precision tuning yields amazing tonal benefits in the higher frets. This allows you to tune to dead nut on.

After decades of playing - I can state unequivocally - this is as good or better than anything Ive tried.

If I knew going in that it was as good as it turned out to be - I would have been happy to pay the $1.99.

Downgrade v3.0 about Fine Tuner - Chromatic Tuner