# QuartzMetro — metronome app

> Accurate and simple metronome app for musicians. (iPhone/iPad app by ON Science Japan.)

- Source: https://appshunter.io/ios/app/quartzmetro/id451157746 (this page in markdown: same URL + `.md`)
- Developer: [ON Science Japan](https://appshunter.io/developer/451157749)
- Category: Music, Utilities
- Price: Free
- Rating: 4.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 1 MB
- Languages: American English
- Released: 2011-07-26
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/quartzmetro/id451157746/reviews.md

## What is QuartzMetro?

This is an app of the metronome.
Accurate: An error of less than 22.7 micro-second.(based on theoretical calculation)
(1 micro-second is equal to 0.001 milli-second.)
Simple: Drag the white ring to change tempo.
Tone quality is like real metronome tone.
Low power consumption during use.

This app is for free. Made in Japan!

## Key features

- Highly accurate tempo control
- Simple drag interface
- Realistic metronome sound
- Low power consumption
- Free to use

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/quartzmetro/id451157746/reviews.md

### 4/5 — Tick..Tick..Tick..Tick.........Tick........Tick

*2013-01-13*

Plane Metronome.  Daddy like.
Very smooth action.
Fascinating in it's own simple way. 
Kinda cool.

### 4/5 — Good basic metronome

*2012-12-28*

For what a metronome is supposed to do, this gets it right.  Accurate and easy to make quick adjustments.  Good interface is not too touchy like most other metronomes.  While it doesn't have any bells or whistles like many other free metronome apps, it's a good basic unit.  The volume is quite weak and if anything were to be changed without making it more complex it would be that.

While there are other free ones that can do more, many are not accurate.  Good bare bones metronome.

## Frequently asked questions about QuartzMetro

### What is QuartzMetro's accuracy?

QuartzMetro boasts an error of less than 22.7 microseconds, ensuring precise tempo for your practice sessions.

### How do I change the tempo in QuartzMetro?

Changing the tempo is simple; just drag the white ring on the screen to adjust it to your desired speed.

### Does QuartzMetro have ads?

No, QuartzMetro is ad-free, providing an uninterrupted practice experience.

### What devices does QuartzMetro support?

QuartzMetro is available for iPhone and iPod devices.

### What is the age rating for QuartzMetro?

QuartzMetro has an age rating of 4+, making it suitable for a wide range of users.

### How often is QuartzMetro updated?

The latest version is 1.1.0, last updated on November 25, 2020. While updates may not be frequent, the app is stable and functional.

### What is the user sentiment for QuartzMetro?

Based on available data, QuartzMetro has a rating of 4.0 stars from 2 ratings, indicating positive user reception.

### Is QuartzMetro free to download and use?

Yes, QuartzMetro is completely free to download and use, with no in-app purchases or subscriptions required.

## Version history (last 2 releases)

### 1.1.0 — 2020-11-25

Updated for 64bit app
Compatibillity with iOS 13

### 1.0 — 2011-07-26

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*