# Booster Up! vs Memory Castle

The clearest difference is ads: Memory Castle at none against Booster Up!'s shown. Booster Up!'s advantage is iOS requirement (11.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Booster Up! sells 10 one-off in-app purchases and Memory Castle sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Booster Up! | Memory Castle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (17K ratings)](https://appshunter.io/ios/app/booster-up/id1668176193/reviews)** | — |
| Number of ratings | **17K** | — |
| Positive reviews | 19.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 400 MB | 68 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Rollic Games](https://appshunter.io/developer/1452111779) | [ALARIC CORBIN](https://appshunter.io/developer/6796168615) |

## What reviewers say

### Booster Up!

[App page](https://appshunter.io/ios/app/booster-up/id1668176193)

Embark on an intergalactic adventure by merging rocket modules to create powerful spacecraft. Launch your rocket, explore planets, collect rewards, and upgrade components to fly farther and overcome challenges.

**Highlights:** Merge rocket modules, Launch and explore planets, Collect rewards and stars, Upgrade rocket components, Unlock new rockets, Overcome space challenges

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beginners Pack | $0.99 | one-time |
| Diamond - 3M | $1.99 | one-time |
| No ADS | $3.99 | one-time |
| Special Module Pack | $4.99 | one-time |
| Adventurer’s Pack | $6.99 | one-time |
| Adventurer's Pack with No-Ads | $9.99 | one-time |
| Astronaut’s Pack | $12.99 | one-time |
| Astronaut’s Pack with No Ads | $14.99 | one-time |
| Explorer’s Pack | $19.99 | one-time |
| Explorer’s Pack with No Ads | $24.99 | one-time |

**What reviewers like**

- 🚀 Fun and challenging gameplay
- 🚀 Simple and intuitive controls
- 👍 Visually appealing graphics

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 💸 Excessive in-app advertisements
- 🔒 Requires internet connection to play
- 🔋 High battery consumption

**Reported bugs**

- Rocket parts disappearing after upgrades
- Inability to reach or progress past certain planets
- Inconsistent reward payouts
- Game freezing or crashing
- Saved progress not loading correctly

**Requested features**

- Offline play mode
- More diverse rocket and module options
- Improved progression system
- Better reward balancing


### Memory Castle

[App page](https://appshunter.io/ios/app/memory-castle-mind-palace/id6819114213)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Endless Mode | $0.99 | one-time |
| All Rooms | $0.99 | one-time |
| Timed Mode | $0.99 | one-time |
| Complete the Castle | $0.99 | one-time |
| All Access | $1.99 | one-time |


## Frequently asked questions

### Is Booster Up! free?

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

### Is Memory Castle free?

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

### Do Booster Up! or Memory Castle have ads?

Booster Up! shows ads; Memory Castle does not.

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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.*