With Old Diapason, you can have in your pocket the 5 most used tuning forks: A3 392 Hz, A3 415 Hz, A3 421 Hz, A3 430 Hz and A3 440 Hz. Retina display compatible, universal application (iPhone, iPod touch and iPad).
With Old Diapason, you can have in your pocket the 5 most used tuning forks: A3 392 Hz, A3 415 Hz, A3 421 Hz, A3 430 Hz and A3 440 Hz. Retina display compatible, universal application (iPhone, iPod touch and iPad).