# Dolphin Memory Game vs Brain Rush

The clearest difference is price: Dolphin Memory Game at Free against Brain Rush's $0.99. Brain Rush's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Dolphin Memory Game is free to download; Brain Rush costs $0.99 up front. Dolphin Memory Game sells 4 one-off in-app purchases. Brain Rush asks for nothing beyond the download.

Dolphin Memory Game ships an update every 3 days, Brain Rush every 4 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Dolphin Memory Game | Brain Rush |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 15 MB | 6 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Perez Parreno](https://appshunter.io/developer/1725474072) | [Shenyang Yuzu Technology Co., Ltd](https://appshunter.io/developer/1845797307) |

## What reviewers say

### Dolphin Memory Game

[App page](https://appshunter.io/ios/app/dolphin-memory-game/id6475963704)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Remove advertisements | $2.99 | one-time |
| Lunch | $5.99 | one-time |
| Dinner | $14.99 | one-time |


### Brain Rush

[App page](https://appshunter.io/ios/app/brain-rush-mental-arithmetic/id6754001219)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dolphin Memory Game free?

Dolphin Memory Game is free to download, with in-app purchases available.

### Is Brain Rush free?

Brain Rush costs $0.99, with no in-app purchases.

### Do Dolphin Memory Game or Brain Rush have ads?

Dolphin Memory Game shows ads; Brain Rush does not.

### Which is updated more often, Dolphin Memory Game or Brain Rush?

Dolphin Memory Game ships an update every 3 days, and Brain Rush every 4 days. Most recently, Dolphin Memory Game was updated on November 8, 2026 and Brain Rush on October 30, 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.*