Reson8 Tuner

Precision instrument tuner

Free

Reson8 is a precision instrument tuner with professional-grade accuracy. Everything runs on your device: no ads, no accounts, and no internet connection required. TUNE ANY INSTRUMENT - Chromatic tuner with a fast, stable pitch display - Guitar, bass, and ukulele with per-string guidance - Wind instruments with transposing readout for B-flat, E-flat, and F instruments - Drum tuning, lug by lug: strike beside each lug and the map fills in round the hoop - Professional piano suite with inharmonicity-aware tuning curves PRACTICE TOOLS INCLUDED - Metronome with tap tempo and subdivisions - Tone generator with reference tones from A0 to C8 BUILT FOR ACCURACY - Fast, high-resolution pitch detection that settles in a fraction of a second - Stable readings even in noisy rooms - Adjustable reference pitch (A4) and alternate temperaments PRIVATE BY DESIGN - Microphone audio is analyzed locally in real time and never recorded or transmitted - Anonymous usage statistics and crash reports help improve the app. They never include audio and are not linked to you AVAILABLE IN 34 LANGUAGES English, Arabic, Catalan, Chinese (Simplified and Traditional), Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian, Polish, Portuguese (Brazil and Portugal), Romanian, Russian, Slovak, Spanish, Swedish, Thai, Turkish, Ukrainian, and Vietnamese. The app follows your device language. Whether you are touching up a guitar before a gig, checking a horn section, or laying a full piano tuning, Reson8 gives you the accuracy of professional tools in a clean, fast app.

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Reson8 now speaks 34 languages. The whole app, from the tuner to the piano suite, follows your device language. Also in this version: - Tighter, more reliable text layout on small phones and in languages with longer words

Version 1.0.5

The developer, Little Theta LLC, 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:

    • Identifiers
    • Usage Data
    • Diagnostics

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

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Little Theta LLC
Size
29.3 MB
Category
Music
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 32 more
  • English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
4+
Copyright
© 2026 Nick Hirras
  • Developer Website
  • Privacy Policy

    • More by Little Theta LLC

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