Pitch trainer - Harmonize

Name: Pitch trainer - Harmonize
Rating: 4.2021275 (556 reviews)
Author: Toshihiko Arai

By: Toshihiko Arai

Just intonation ear training App.

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This app was removed from Google Play Store on 2026-02-10

Features & Capabilities

Pitch Trainer - Harmonize is a unique ear training Chrome extension designed to help users develop perfect and relative pitch through just intonation. Ideal for music students, orchestra members, brass bands, and karaoke enthusiasts, this app focuses on the nuanced learning of double-stop notes using just intonation principles.

Unlike equal temperament, this extension calculates intervals based on precise frequency ratios, allowing learners to experience true harmonic consonance. Sounds are played simultaneously, encouraging users to match tones by ear and recognize the clarity of just intervals. The app comes with a reference tone of A=442 Hz and serves as both an educational tool and a fun music game to enhance auditory skills and musical harmony understanding.

User Growth & Download Statistics

Game Education Music & Audio

By:

Downloads:

Rating:

Version:

26.1.0 Last updated: 2026-01-28

Version code:

Creation date:

2017-01-06

Permissions:

com.google.android.gms.permission.AD_ID Moderate risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.WAKE_LOCK Low risk
android.permission.ACCESS_NETWORK_STATE Safe
com.android.vending.CHECK_LICENSE Safe

Size:

5.92MB

Email:

i.*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-02-10

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Toshihiko Arai

Google Play Store

https://play.google.com/store/apps/details?id=com.apppppp.harmonize

Email:

i.*****@gmail.com

Website:

https://s.araisun.com/harmonize-pr.html

User Reviews

Users appreciate Pitch Trainer for its effective ear training, especially in just intonation, and its straightforward, engaging approach to tuning and intervals. It is praised for helping musicians build confidence in pitch recognition. However, recurring complaints include intrusive ads after every short game, lack of customization settings, confusing instructions, and missing features compared to the iOS version. Some users find it hard to isolate notes due to overpowering overtones and desire more advanced interval options and chord training capabilities.

Pros

Very effective for ear training and developing pitch recognition, especially with just intonation.
Good range of levels and exercises that help improve interval recognition and tuning skills.
Simple and straightforward user interface, making it accessible to a wide range of users and musicians.
Helpful for musicians of various backgrounds, including string players and vocalists, to fine-tune their ears.
App provides a unique and challenging way to practice pitch and harmonic intervals, promoting confident listening skills.

Cons

Presence of frequent and intrusive ads after each short game, disrupting the learning experience and making it difficult to review results.
Lack of settings and customization options, such as the ability to adjust intervals, change default sounds, or toggle sound effects like applause and trombone noises.
Some confusion due to poor or incomplete instructions and occasional translation issues.
Missing features compared to the iOS version, including playing notes separately and options for temperament tuning such as equal temperament.
Difficulty distinguishing notes because overtones can be louder than fundamentals, which can hinder tuning accuracy.

Recent reviews

This app is helpful and straightforward. It's helped me learn and gain confidence in intervals by ear.

Me*****, 2024-12-07

This app is great, it's really helpful to train the ear, and I'm learning to listen to beating harmonics with it (to nullify them). What would be great would be more intervals : 9/8, 10/9, 16/15, 7/4, 7/6, 8/7, 9/7, 9/5, 15/8, 16/9, etc. or the ability to add personalized intervals, starting from randomized notes, or the same game with three voices or more would be great, to reproduce chords. 5/5