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Last updated: February 2026

Guitar Tuner

FretGenius includes a built-in guitar tuner for iOS and Android.

It is intentionally simple:

  • Auto string detection and lock
  • Fast “get in tune and start playing” flow
  • A little snark (because tuning is boring)

Download on the App Store | Get it on Google Play

Why a tuner inside a fretboard trainer?

Because practice that sounds wrong is practice that does not stick.

Several FretGenius modes assume you are reasonably in tune, especially when you are doing real-guitar practice (Play Along, microphone-based training). The tuner is there so you can:

  • tune quickly
  • stop second-guessing pitch
  • get back to actual training

How to use it

  1. Open the tuner inside the app.
  2. Allow microphone permission.
  3. Play a string clearly and steadily.
  4. Let the tuner lock, then adjust until you are in tune.
  5. Start training (Play Along or Microphone Note Trainer).

If you are looking for “tell me when I played the correct prompted note,” use:

Tuner vs Microphone Note Trainer (quick comparison)

Guitar Tuner

Best for:

  • getting your guitar in tune

Microphone Note Trainer (PRO)

Best for:

  • training note recall on the real instrument
  • “app as the judge” practice
  • heatmaps + speed trends based on real playing

Microphone Note Trainer details