Justune
Guitar, bass and ukulele tuner.
Guitar tuner app with no distractions.
Just tune your instrument.

Features:
- quick start up,
- no ads, no distracting features, just a tuner,
- guitar, ukulele and bass tuner,
- automatic string recognition,
- 1000+ inbuilt alternate tunings,
- web version available at https://justune.eu (for free, no ads).