AppStash vs Polyrhythm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AppStash
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A simple intuitive dice roller. Playing a game and need some dice? Say no more
Polyrhythm
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.
- Variety of sound presets
- Organic and synthesized instruments
- Background ambient sounds
- AI preset generator
- Advanced preset customization
- Create and save custom presets
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When it's time for rest and relaxation, our app will become your faithful companion. Perfect for use before sleep or during meditation, it can also help soothe your child or yourself. Based on polyrhythmic sound playback, our app promises a deep immersion into the world of sounds and visualizations. Features of our app: - A variety of presets with unique moods; - Various organic and synthesized musical instruments to create the perfect atmosphere; - Background sounds including white noise, bird songs, and ocean waves; - AI preset generator for a continuous flow of inspiration; - Advanced preset customization for precise sound tuning; - Ability to create custom presets and save them to favorites. Discover the world of harmony and tranquility with our unique app - your personal oasis of calm. Also worth reading Privacy Policy: https://sites.google.com/view/castles-trip-privacy-policy. And Terms of use: https://sites.google.com/view/polyrhythm-tos
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | AppStash | Polyrhythm |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.1 (9 ratings) — better |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 28 months | Every 5 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 18.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 131 MB |
| Age rating | 4+ | 4+ |
| Developer | Chun Wong | Stanislav Duplinskiy |
In-app purchases
AppStash
- Unlock Pro$0.99
Polyrhythm
- Full access to app functions$1.997 Days
- Full access to app functions$5.991 Month
- Full access to app functions3 Days trial$12.993 Months
Questions
Is AppStash free?
Is Polyrhythm free?
Do AppStash or Polyrhythm have ads?
Which is updated more often, AppStash or Polyrhythm?
Other comparisons
