# Aurora Zen vs Polyrhythm

The clearest difference is rating: Aurora Zen at 5.0 against Polyrhythm's 2.1. Aurora Zen also leads on in-app purchases (none vs 3). Polyrhythm's advantage is update cadence (every 5 weeks vs every 11 months) and ratings volume (9 vs 1). 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. Aurora Zen asks for nothing beyond the download.

Aurora Zen holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: Polyrhythm has 9 ratings behind it against 1, so its average is the more settled of the two.

Aurora Zen ships an update every 11 months, Polyrhythm every 5 weeks. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Aurora Zen | Polyrhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aurora-zen/id1662065243/reviews)** | [2.1 (9 ratings)](https://appshunter.io/ios/app/polyrhythm-relaxing-sounds/id6462398544/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 695 MB | 131 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Virtex Edge Design Inc.](https://appshunter.io/developer/1276208686) | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) |

## What reviewers say

### Aurora Zen

[App page](https://appshunter.io/ios/app/aurora-zen/id1662065243)

Create stunning visual displays by painting the sky with vibrant aurora ribbons. This app offers a relaxing experience, allowing users to find their zen through colorful and dynamic sky art.

**Highlights:** Paint the sky with aurora ribbons, Create vibrant colors and shapes, Relaxing and zen-like experience, Dynamic visual displays, Fill the sky with beautiful art

**Features:** macOS Compatibility

**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 Aurora Zen free?

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

### Is Polyrhythm free?

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

### Which has better reviews, Aurora Zen or Polyrhythm?

Aurora Zen is rated higher. Aurora Zen averages 5.0 out of 5 from 1 ratings, while Polyrhythm averages 2.1 from 9 ratings.

### Do Aurora Zen or Polyrhythm have ads?

Neither Aurora Zen nor Polyrhythm shows ads.

### Which is updated more often, Aurora Zen or Polyrhythm?

Aurora Zen ships an update every 11 months, and Polyrhythm every 5 weeks. Most recently, Aurora Zen was updated on November 3, 2026 and Polyrhythm on November 12, 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.*