# Metrovolve vs 4 bars Metronome

The clearest difference is ads: 4 bars Metronome at none against Metrovolve's shown. 4 bars Metronome also leads on update cadence (every 5 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Metrovolve ships an update every 5 weeks, 4 bars Metronome every 5 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Metrovolve | 4 bars Metronome |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/metrovolve/id1659423766/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 13 MB | 26 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sato Tsutomu](https://appshunter.io/developer/1659423768) | [Hitoshi Yamaguchi](https://appshunter.io/developer/1606219554) |

## What reviewers say

### Metrovolve

[App page](https://appshunter.io/ios/app/metrovolve/id1659423766)

This app offers a unique approach to rhythm training by visualizing it in two dimensions through a circular interface. It allows users to both hear and see the rhythmic flow, providing an intuitive experience for musicians of all levels.

**Highlights:** Circular rhythm visualization, Dual sound and visual feedback, Intuitive interface, Suitable for all skill levels, 2D rhythm experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 4 bars Metronome

[App page](https://appshunter.io/ios/app/4-bars-metronome/id6450316704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metrovolve free?

Metrovolve is free to download, with no in-app purchases.

### Is 4 bars Metronome free?

4 bars Metronome is free to download, with no in-app purchases.

### Do Metrovolve or 4 bars Metronome have ads?

Metrovolve shows ads; 4 bars Metronome does not.

### Which is updated more often, Metrovolve or 4 bars Metronome?

Metrovolve ships an update every 5 weeks, and 4 bars Metronome every 5 days. Most recently, Metrovolve was updated on November 3, 2026 and 4 bars Metronome on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*