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By Bitcount ltd.

This app is only available on the App Store for iOS devices.


"My most indispensable app is my guitar tuner, Cleartune. None of the old visual or analog tuners are as precise. I've even taken it on stage with me!" - Rosanne Cash

"Cleartune and Clockwork are my most used apps." - Ezra Oklan (Nicole Atkins, Norah Jones, Antibalas Afrobeat Orchestra, Matt Beck (Matchbox 20), Chico Hamilton, Arnie Lawrence)

"I've been having trouble with interference on stage with other tuners for the iPhone. Used Cleartune last night before a gig and had no problems with stage noise. Excellent tuner for bass." - Rob Calder (Kanye West, Angus and Julia Stone, The Break and Repair Method, Ghostface Killah)

Used in the making of the new Gorillaz album "The Fall"

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• Featured in Electronic Musician, Matchbox Mag, Making Music Mag, Premiere Guitar, MacWorld, Apple Staff Picks, Worship Leader Mag, Acoustic Guitar

• Spotted in use backstage by The Black Keys, C.W. Stone King (, Grammy Nominee Sones de México (


Cleartune is a chromatic instrument tuner and pitch pipe that allows you to quickly and accurately tune your instrument using the built-in mic in your device.

Cleartune features a unique "note wheel" interface allowing you to quickly find your pitch, paired with a highly responsive fine-tuning meter for the perfect tune.

With support for custom temperaments, transposition, notations such as solfège, and adjustable calibration, Cleartune packs more power than most pro tuners, yet is simple enough for everyone to use.

Cleartune can tune acoustic or electric guitar, bass, bowed strings, woodwinds, brass, piano, tympani and any other instrument that can sustain a tone.

Most electronic tuners cannot properly tune a violin. With a built in temperament for violin family instruments, Cleartune will have the 5ths singing perfectly.


- Note Wheel Display
- Ultra responsive 25 cent range fine tuning display
- Needle Damping option
- Accuracy ±0.01 semitone (±1 cent)
- Selectable Temperaments
- Selectable Notations (such as Solfège)
- User-defined temperament and notations
- Support for transposing instruments
- Automatic reference note calibration
- Adjustable A4 calibration in 0.1 Hz increment
- Pitch Pipe/Tone generator
- Selectable tone waveform
- Automatic or manual note selection

What's New in Version 2.2

Update for iOS 11


iPhone Screenshot 1
iPhone Screenshot 2
iPad Screenshot 1
iPad Screenshot 2

Customer Reviews

Best tuner, on its way back

I am a classical violinist and have used this app every day for about 3 years. I was very pleased that it works again after the iOS update, but I note two new issues: 1) The frequency “read” seems somewhat less stable than before, with transient errors up to a 5th, apparently unrelated to input volume or ambient noise. 2) I also miss the continuous mode for the frequency generator - a survivable omission, but occasionally useful. Similarly, it would be nice if the wheel could be made to rotate in analog fashion to show out of tune inputs, rather than locking on a particular note, with deviations shown only on the meter above the wheel.

Despite these issues, this is still by far the best tuner app I have seen.

Thank you for the update!

Thank You! Thank You! Thank You!!! . I’ve been a professional musician since 1980 and this is BY FAR the best and most accurate guitar tuner I’ve ever used. I was devastated when IOS 11 came out and the tuner wasn’t working. Thanks for the quick update. The temperament function really makes it worth it, too. Ever since I read an article in an article in Disc Makers Blog, I’ve used it regularly. Below is a brief section from that article:

James Taylor, in order to accommodate the vagaries of acoustic guitars, tunes his strings flatter than normal. Here is his guide:
High E string -3 cents
B string -6 cents
G string -4 cents
D string -8 cents
A string -10 cents
Low E string -12 cents

This tuning method is also great for using a capo.

Now, your mileage may vary. Your guitar is different than Taylor’s guitar. Your action may be higher. Maybe you play harder. Maybe you don’t use capos. Try it out and adjust your tuning as need be.

Anyway, thanks again! This tuner is the best of any I’ve found in the App Store, and (if you’re a serious musician) is worth more than the price you are charging. Have a wonderful day! -DJG. nyc

Thank you for the update!!!!!

I never deleted this app before the update and I tapped on it by accident and it opened! I was so ecstatic, Ive never been more excited about an update for an app! No I can resume my practice just as I did before! Thank you so much for updating this wonderful app! One thing I did notice however... I like to play the drone through a Bluetooth speaker so I can hear it as I’m playing a passage, and now it won’t play through my speaker. My metronome does, so this is a little disappointing. But this is a minor thing compared to how great this app is! Thank you again!

View in iTunes
This app is designed for both iPhone and iPad
  • $3.99
  • Category: Music
  • Updated:
  • Version: 2.2
  • Size: 9.8 MB
  • Languages: English, Chinese, Danish, Dutch, French, German, Italian, Japanese, Spanish, Swedish
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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