# iPendulumWaves vs Polyrhythm

The clearest difference is in-app purchases: iPendulumWaves at none against Polyrhythm's 3. Polyrhythm's advantage is update cadence (every 5 weeks vs every 90 months). On price, ads, device support and iOS requirement there is nothing between them.

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

iPendulumWaves ships an update every 90 months, Polyrhythm every 5 weeks. The most recent releases landed on September 25, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | iPendulumWaves | Polyrhythm |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 90 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 131 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [fleron](https://appshunter.io/developer/549502195) | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) |

## What reviewers say

### iPendulumWaves

[App page](https://appshunter.io/ios/app/ipendulumwaves/id585690103)

Experience a 3D graphical simulation of "Pendulum Waves". Interact with the simulation using intuitive touch gestures for camera control, including dragging, pinching, and rotation. Double-tap to reset the camera to its default position.

**Highlights:** 3D graphical simulation, Pendulum Waves physics, 1-finger drag camera movement, 2-finger drag camera panning, Pinch to zoom camera, Rotation gesture for camera, Double tap to reset camera

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is iPendulumWaves free?

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

### Is Polyrhythm free?

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

### Do iPendulumWaves or Polyrhythm have ads?

Neither iPendulumWaves nor Polyrhythm shows ads.

### Which is updated more often, iPendulumWaves or Polyrhythm?

iPendulumWaves ships an update every 90 months, and Polyrhythm every 5 weeks. Most recently, iPendulumWaves was updated on September 25, 2026 and Polyrhythm on September 30, 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.*