# PiyoPiyo! vs SOINSU math puzzle

The clearest difference is review sentiment: SOINSU math puzzle at 90% against PiyoPiyo!'s 59%. SOINSU math puzzle also leads on update cadence (weekly vs every 4 months) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PiyoPiyo! sells 5 one-off in-app purchases and SOINSU math puzzle sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PiyoPiyo! ships an update every 4 months, SOINSU math puzzle weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PiyoPiyo! | SOINSU math puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (33 ratings)](https://appshunter.io/ios/app/piyopiyo/id1375894868/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 59.1% of reviews | **90.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 119 MB | 105 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [flow Incorporated.](https://appshunter.io/developer/1375894867) | [GAIBAKO co., Ltd.](https://appshunter.io/developer/1548482925) |

## What reviewers say

### PiyoPiyo!

[App page](https://appshunter.io/ios/app/piyopiyo/id1375894868)

Merge tiles of the same icon and color to evolve eggs to higher levels. Strategically merge multiple tiles at once to create wildcard tiles, but avoid filling the board to prevent game over. Enjoy a relaxing, no-time-limit puzzle experience.

**Highlights:** Merge same icon and color tiles, Evolve eggs to next level, Create wildcard tiles, Autosave functionality, Next tile notification, Score ranking

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5,000 Stars | $2.99 | one-time |
| Remove Ads | $2.99 | one-time |
| 10,000 Stars | $4.99 | one-time |
| 25,000 Stars | $9.99 | one-time |
| 50,000 Stars | $17.99 | one-time |


### SOINSU math puzzle

[App page](https://appshunter.io/ios/app/soinsu-math-puzzle/id6444055103)

Engage in a brain-training puzzle game focused on prime factorization. Anyone can learn the fun of numbers through this simple, time-killing activity. Enjoy the challenge of dividing numbers into prime factors with a high-tempo soundtrack.

**Highlights:** Prime factorization gameplay, Brain training puzzles, Mental arithmetic practice, Cyber visuals, Trance music soundtrack, Multiple game modes, Prime number collection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add no time limit mode | $0.99 | one-time |
| Hidden Ads | $2.99 | one-time |


## Frequently asked questions

### Is PiyoPiyo! free?

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

### Is SOINSU math puzzle free?

SOINSU math puzzle is free to download, with in-app purchases available.

### Do PiyoPiyo! or SOINSU math puzzle have ads?

Both PiyoPiyo! and SOINSU math puzzle show ads.

### Which is updated more often, PiyoPiyo! or SOINSU math puzzle?

PiyoPiyo! ships an update every 4 months, and SOINSU math puzzle weekly. Most recently, PiyoPiyo! was updated on November 2, 2026 and SOINSU math puzzle on November 3, 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.*