# AppStash vs Polyrhythm

The clearest difference is ads: Polyrhythm at none against AppStash's shown. Polyrhythm also leads on update cadence (every 5 weeks vs every 28 months) and iOS requirement (12.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. AppStash sells 1 one-off in-app purchase and Polyrhythm sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AppStash ships an update every 28 months, Polyrhythm every 5 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AppStash | Polyrhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (9 ratings)](https://appshunter.io/ios/app/polyrhythm-relaxing-sounds/id6462398544/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 28 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 131 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chun Wong](https://appshunter.io/developer/1534425422) | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) |

## What reviewers say

### AppStash

[App page](https://appshunter.io/ios/app/appstash-dice-roller/id1484047430)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $0.99 | one-time |


### 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 AppStash free?

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

### Is Polyrhythm free?

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

### Do AppStash or Polyrhythm have ads?

AppStash shows ads; Polyrhythm does not.

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

AppStash ships an update every 28 months, and Polyrhythm every 5 weeks. Most recently, AppStash was updated on October 26, 2026 and Polyrhythm on October 24, 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.*