Overtone: Guitar Tuner

Chromatic, tunings & scales

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Introducing Play — a new way to practise. Pick a scale, start playing, and the board lights up the exact note you're hitting. Overtone is a guitar tuner that gets out of your way. Open it and it's already listening — no buttons, no setup. Pluck a string and the big, easy-to-read display tells you exactly where you are and which way to turn. PRECISE, RESPONSIVE TUNING • Real-time pitch detection that locks on fast and reads steady • Auto string detection — it knows whether you're on the low E or the high one, so you can just play • Clear cents readout with flat / in-tune / sharp guidance and a satisfying nudge when you land it • Standard tuning (E A D G B E), A4 = 440 Hz • Lock to a single string when you want to stay put SCALES & FRETBOARD MAPS More than a tuner — a pocket reference for finding your sound: • Scales grouped by feel across blues, folk, soul, and reggae • Tap any scale to see it laid out on the fretboard • Transpose to any root to match the song you're playing • Save the scales you reach for most to your favorites PLAY ALONG IN REAL TIME Turn practice into a game your ears can see: • Pick a scale and start playing — the board lights up the exact note you're hitting, live • Watch your runs come alive on the fretboard as you move • A new way to learn a scale, find the next note, and stay in key BUILT TO LOOK AT A vintage, hand-tuned aesthetic — warm amber on deep black, serif numerals, and a subtle film grain — that feels like a piece of studio gear, not a utility app. The screen stays awake while you tune so you're never reaching for your phone mid-string. No accounts. No clutter. Just pick it up and play in tune.

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Introducing Play — a new way to practise. Pick a scale, start playing, and the board lights up the exact note you're hitting.

Version 1.2.0

The developer, Glade Kettle, 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 Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • Glade Kettle
    Size
    • 2.3 MB
    Category
    • Music
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Glade Kettle
  • Developer Website
  • Privacy Policy