TUNE - Smart Chromatic Tuner 4+

Multi-Instrument Tuning Tool

Fretello GmbH

Designed for iPad

    • 3.7 • 67 Ratings
    • Free
    • Offers In-App Purchases


TUNE provides accurate and intuitive chromatic tuning for over 30 different instruments.

From cello to trumpet, guitar to clarinet, TUNE ensures you’re always playing in perfect pitch.

Whether you play brass, woodwind, strings, an acoustic or electric guitar, TUNE guarantees your instrument is always sounding its best.

If you want a tuner that:
• Is free, simple, and intuitive to use
• You can tune to any pitch or frequency
• You can use whenever, wherever you are
• You can improve your perfect pitch skills with

Then download TUNE and make your instrument sing.


Is your instrument compatible with TUNE?

TUNE was developed and tested by professional musicians who regularly perform in ensembles, bands, and orchestras. As a result, it’s compatible with over 30 instruments.

TUNE is for you if you play:
• A fretted instrument (i.e. ukulele or an acoustic, electric, or bass guitar)
• A fretless instrument (i.e. violin, cello, or contrabass)
• A brass or woodwind instrument (i.e. clarinet, saxophone, trumpet, or trombone)


Do you have any questions or feedback? We’d love to hear from you: support@fretello.com

What’s New

Version 1.4

Pocket Tune is now called Tune and comes with a whole new color scheme.

Ratings and Reviews

3.7 out of 5
67 Ratings

67 Ratings

Vincent14472 ,

So far so good

It’s a great app with a cool looking UI. So far I haven’t seen any adds, but on apps like these it’s bound to happen. I hope not though as adds really clutter up the screen and take away from the minimalistic look of this app. Other than that, tuner is pretty good and has all the functionality you need as a beginner to advanced musician. I wouldn’t recommend this tuner to soloists but for everyone else it’s great.

Mr beast 001 ,

Good app

Awesome cool helpful only 4 star because the app has only 1 octave and to reach the second you need money.

Dumbmonkey89 ,

Tuner is okay...

The tuner is a great app, it tunes trumpets well. Why I'm giving it a 3 stars instead of a 5, is that the watch app only acts as an "external display" for the tuner. I found this out when I tried tuning my instrument when my phone was away, and when I brought it closer and turned on the display, you can see that the app is using your phone. A bit disappointing, but still a good app.

App Privacy

The developer, Fretello GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • User Content
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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