# Polyrhythm vs Pendulum Wave 3D

The clearest difference is in-app purchases: Pendulum Wave 3D at none against Polyrhythm's 3. Pendulum Wave 3D also leads on update cadence (every 10 days vs every 5 weeks). Polyrhythm's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Polyrhythm sells 3 in-app purchases, starting at $1.99 per 7 days. Pendulum Wave 3D asks for nothing beyond the download.

Polyrhythm ships an update every 5 weeks, Pendulum Wave 3D every 10 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Polyrhythm | Pendulum Wave 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (7 ratings)](https://appshunter.io/ios/app/polyrhythm-relaxing-sounds/id6462398544/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 131 MB | 10 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) | [Takashi Nemoto](https://appshunter.io/developer/6790828928) |

## What reviewers say

### Polyrhythm

[App page](https://appshunter.io/ios/app/polyrhythm-relaxing-sounds/id6462398544)

Create a personalized soundscape for relaxation, sleep, or meditation. Explore a variety of organic and synthesized instruments, ambient background sounds, and AI-generated presets. Customize and save your favorite sound combinations for a tranquil experience.

**Highlights:** Variety of sound presets, Organic and synthesized instruments, Background ambient sounds, AI preset generator, Advanced preset customization, Create and save custom presets

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access to app functions | $1.99 | per 7 days |
| Full access to app functions | $5.99 | per month |
| Full access to app functions | $12.99 | per 3 months |


### Pendulum Wave 3D

[App page](https://appshunter.io/ios/app/pendulum-wave-3d/id6794791818)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polyrhythm free?

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

### Is Pendulum Wave 3D free?

Pendulum Wave 3D is free to download, with no in-app purchases.

### Do Polyrhythm or Pendulum Wave 3D have ads?

Neither Polyrhythm nor Pendulum Wave 3D shows ads.

### Which is updated more often, Polyrhythm or Pendulum Wave 3D?

Polyrhythm ships an update every 5 weeks, and Pendulum Wave 3D every 10 days. Most recently, Polyrhythm was updated on October 12, 2026 and Pendulum Wave 3D on October 16, 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.*