# Piranha Universe vs Math Idol

The clearest difference is in-app purchases: Piranha Universe at none against Math Idol's 1. Piranha Universe also leads on iOS requirement (11.0 vs 15.0). Math Idol's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Math Idol sells 1 one-off in-app purchase. Piranha Universe asks for nothing beyond the download.

Piranha Universe ships an update every 3 weeks, Math Idol weekly. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Piranha Universe | Math Idol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/piranha-universe/id6499347692/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 235 MB | 445 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Any Games OU](https://appshunter.io/developer/1513586172) | [DANIEL DEL CASTILLO](https://appshunter.io/developer/576998059) |

## What reviewers say

### Piranha Universe

[App page](https://appshunter.io/ios/app/piranha-universe/id6499347692)

Grow from a small fish to a mega shark by eating other fish and exploring new areas. Discover sunken treasures and face challenging bosses in this underwater adventure. The game features evolving gameplay and new environments to unlock.

**Highlights:** Eat fish to evolve, Unlock Atlantis area, Find sunken ships, Battle Angler Boss, Evolve to Mega Shark

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Idol

[App page](https://appshunter.io/ios/app/math-idol/id6757206532)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Piranha Universe free?

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

### Is Math Idol free?

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

### Do Piranha Universe or Math Idol have ads?

Both Piranha Universe and Math Idol show ads.

### Which is updated more often, Piranha Universe or Math Idol?

Piranha Universe ships an update every 3 weeks, and Math Idol weekly. Most recently, Piranha Universe was updated on November 4, 2026 and Math Idol on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*