iTuner - Chromatic Tuner 4+

Tuner for Guitar Piano Violin

Vitalii Gryniuk

Designed for iPad

    • 4.4 • 77 Ratings
    • Free
    • Offers In-App Purchases



Professional Chromatic tuner with Tone generator.
Tune Guitar, Piano, Violin with a iTuner app.

- High Accuracy ( > 0.01 semitone)
- Tuning forks (20 - 20 000 Hz)
- Frequency meter
- Spectrum FFT
- Use for Voice training

Tuning systems:
- Equal temperament (1, 2​¹⁄¹², 2​²⁄¹², 2​³⁄¹², 2​⁴⁄¹², 2​⁵⁄¹², 2​⁶⁄¹², 2​⁷⁄¹², 2​⁸⁄¹², 2​⁹⁄¹², 2​¹⁰⁄¹², 2​¹¹⁄¹², 2)
- Pythagorean (1, ²⁵⁶⁄₂₄₃, ⁹⁄₈, ³²⁄₂₇, ⁸¹⁄₆₄, ⁴⁄₃, ¹⁰²⁴⁄₇₂₉, ³⁄₂, ¹²⁸⁄₈₁, ²⁷⁄₁₆, ¹⁶⁄₉, ²⁴³⁄₁₂₈, 2)
- 12 equal parts (1, ¹³⁄₁₂, ⁷⁄₆, ⁵⁄₄, ⁴⁄₃, ¹⁷⁄₁₂, ³⁄₂, ¹⁹⁄₁₂, ⁵⁄₃, ²¹⁄₁₂, ¹¹⁄₆, ²³⁄₁₂, 2)

Tuning frequency:
- Adjustable. Default 440 hz

- Sine
- Triangle
- Sawtooth
- Square

Guitar Tuning
- recommended press all next strings

Piano Tuning
- for octaves 0,1,2 need use external mic.

Unlock octaves:
Your subscription will renew automatically each year and payment will be charged to your iTunes Account within 24-hours prior to the end of the current period. You can turn off auto-renewal by going to your Account Settings after purchase.

Terms of Use:

Privacy Policy:

What’s New

Version 2.5

- Fix bug

Ratings and Reviews

4.4 out of 5
77 Ratings

77 Ratings

Mikemo59 ,

Works great.

Helps me tune my piano since my piano tuner retired.

booker007 ,


I would like to use iTuner but as soon as it opens it closes Won’t stay open very long maybe 3 seconds I am using an iPad v15.7.2
Don’t waste your money !

Jon Flush ,

Bad tuner

I actually paid for this app. My mistake. It doesn't work at all. Graphics all over the place and on top of each other. DO NOT PURCHASE!

App Privacy

The developer, Vitalii Gryniuk, 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:

  • Diagnostics

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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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