# MugenCards vs Rock Game 3

The clearest difference is price: Rock Game 3 at Free against MugenCards's $1.99. Rock Game 3 also leads on ads (none vs shown) and update cadence (every 3 days vs every 39 months). MugenCards's advantage is in-app purchases (none vs 4) and device support (3 vs 1).

Rock Game 3 is free to download; MugenCards costs $1.99 up front. Rock Game 3 sells 4 in-app purchases, starting at $4.99 per month. MugenCards asks for nothing beyond the download.

MugenCards ships an update every 39 months, Rock Game 3 every 3 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MugenCards | Rock Game 3 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/rock-game-3/id6784835008/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 39 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 16 MB | 736 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shota Kogge](https://appshunter.io/developer/1762750940) | [Logan Taylor](https://appshunter.io/developer/1843506851) |

## What reviewers say

### MugenCards

[App page](https://appshunter.io/ios/app/mugencards/id6444767145)

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

**In-app purchases:** none


### Rock Game 3

[App page](https://appshunter.io/ios/app/rock-game-3/id6784835008)

Scan real-world rocks with your camera to adopt them as unique, collectible pets. Name, care for, and train your rock companions by walking, making them stronger. Explore a hand-illustrated canyon and log your discoveries in a gentle collecting game.

**Highlights:** Scan real rocks with camera, Adopt rocks as pets, Discover diverse rock species, Keep a field journal log, Train pets with real-world steps, Relaxing hand-illustrated environment

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Game 3+ | $4.99 | per month |
| 500 Pebbles | $1.99 | one-time |
| 1,400 Pebbles | $4.99 | one-time |
| 3,200 Pebbles | $9.99 | one-time |


## Frequently asked questions

### Is MugenCards free?

MugenCards costs $1.99, with no in-app purchases.

### Is Rock Game 3 free?

Rock Game 3 is free to download, with in-app purchases available.

### Do MugenCards or Rock Game 3 have ads?

MugenCards shows ads; Rock Game 3 does not.

### Which is updated more often, MugenCards or Rock Game 3?

MugenCards ships an update every 39 months, and Rock Game 3 every 3 days. Most recently, MugenCards was updated on October 27, 2026 and Rock Game 3 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.*