# Zeitgeist Metronome vs ZZZ Polyrhythm

The clearest difference is ads: Zeitgeist Metronome at none against ZZZ Polyrhythm's shown. Zeitgeist Metronome also leads on update cadence (every 4 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Zeitgeist Metronome sells 2 in-app purchases, starting at $3.99 per year and ZZZ Polyrhythm sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Zeitgeist Metronome ships an update every 4 days, ZZZ Polyrhythm every 6 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | Zeitgeist Metronome | ZZZ Polyrhythm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Size | 56 MB | 6 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Marko Dujic](https://appshunter.io/developer/1896571707) | [SMOLT STAGE, K.K.](https://appshunter.io/developer/1708601451) |

## What reviewers say

### Zeitgeist Metronome

[App page](https://appshunter.io/ios/app/zeitgeist-metronome/id6768424660)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zeitgeist Metronome | $3.99 | per year |
| Zeitgeist Metronome Lifetime | $7.99 | one-time |


### ZZZ Polyrhythm

[App page](https://appshunter.io/ios/app/zzz-polyrhythm/id6773375285)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZZZ Polyrhythm Premium | $0.99 | per month |


## Frequently asked questions

### Is Zeitgeist Metronome free?

Zeitgeist Metronome is free to download, with in-app purchases available.

### Is ZZZ Polyrhythm free?

ZZZ Polyrhythm is free to download, with in-app purchases available.

### Do Zeitgeist Metronome or ZZZ Polyrhythm have ads?

ZZZ Polyrhythm shows ads; Zeitgeist Metronome does not.

### Which is updated more often, Zeitgeist Metronome or ZZZ Polyrhythm?

Zeitgeist Metronome ships an update every 4 days, and ZZZ Polyrhythm every 6 weeks. Most recently, Zeitgeist Metronome was updated on October 28, 2026 and ZZZ Polyrhythm on October 28, 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.*