iPhone Screenshots


The 432 Tuner, as the name suggests, helps tune your instrument to the A=432hz tuning, A=444Hz (C5=528Hz) and Standrad 440Hz.

Many people ask how to tune to the A=432hz tuning, and now you can just download the app and tune.

Using this Tuner you can also tune to A=444hz (which is the 528hz scale) and standard A=440hz.

Our dream was to keep these inventions free of charge but we realized that we need something to sustain ourselves while maintaining and developing new and previous projects.

Creating from the heart
Love Light & Meditation

What’s New

Version 4.0

- Upgraded the whole Tuner
- Less bounces around
- Clean View and Design

Ratings and Reviews

3.9 out of 5
51 Ratings

51 Ratings

Soufiane Sattva ,

Update problems

Since the update my app has not worked.

Eric4578 ,

Just paid actual money and this app does nothing??

I just purchased this app and it apparently does not do anything at all! Does Apple have a refund policy for this? Is this a major bug or a total scam? I proceeded to trouble shoot, confirmed mic was enabled, attempted reinstalling app, restarting phone etc but it’s just a black screen with a picture of a tuner but does nothing. You can choose btwn 3 frequencies but absolutely no other options or any functionality. Anyway, a word of warning - don’t bother throwing your money away on this.

Jpempyre ,


This app works great and is extremely accurate (I haven’t tested it with an external frequency tester but compared it with my digital piano which is pre-tuned to A=440Hz). I’ll be using this app to test the different pianos I play and also for tuning my guitar. If you’re considering this app (for whatever reason), buy it.


Ophir Paz
26.6 MB

Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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