# U vs Rocket Simulator

U and Rocket Simulator both sit at 3.7 stars, but that hides the real split: 63% of U's written reviews are positive against 11% of Rocket Simulator's. U also leads on in-app purchases (none vs 6) and ads (none vs shown). Rocket Simulator's advantage is ratings volume (428 vs 57). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Rocket Simulator sells 6 in-app purchases, starting at $6.99 per 7 days. U asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.7 for U against 3.8 for Rocket Simulator. That said, the two scores are not equally well evidenced: Rocket Simulator has 428 ratings behind it against 57, so its average is the more settled of the two. Written reviews are what separate them: 63% of U's written reviews are positive against 11% of Rocket Simulator's.

U ships an update monthly, Rocket Simulator every 2 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | U | Rocket Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (57 ratings)](https://appshunter.io/ios/app/u-boot-the-board-game/id1331387888/reviews) | **[3.8 (428 ratings)](https://appshunter.io/ios/app/rocket-simulator-spaceflight/id1624406379/reviews)** |
| Number of ratings | 57 | **428** |
| Positive reviews | **63.2% of reviews** | 10.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 249 MB | 286 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [IRON WOLF STUDIO S.A.](https://appshunter.io/developer/849646314) | [Education Terra](https://appshunter.io/developer/946819038) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/u-boot-the-board-game/id1331387888)

This digital companion app enhances the U-BOOT The Board Game experience. It requires the physical board game components to play and is a free tool for players.

**Highlights:** Digital companion tool, Enhances board game play, Free to use

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

**In-app purchases:** none


### Rocket Simulator

[App page](https://appshunter.io/ios/app/rocket-simulator-spaceflight/id1624406379)

Build and launch your own rockets in augmented reality. Assemble various rocket models, learn about their history and functions, and customize them with AI-generated stickers. Experience space exploration with different missions and modes.

**Highlights:** AR rocket assembly, Rocket model customization, Historical rocket information, AI sticker generation, Flight simulation, Educational facts about rockets

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rocket Ship - 1 Week | $6.99 | per 7 days |
| 1 Week Subscription | $9.99 | per 7 days |
| Rocket Simulator: Spaceflight | $19.99 | per month |
| Rocket Ship Building & Launch | $20.99 | per year |
| 3 Months Subscription | $20.99 | per 3 months |
| 2 Months Subscription | $39.99 | per 2 months |

**What reviewers like**

- 👍 Cool concept
- 👍 Epic game
- 👍 Nice
- 👍 Good game
- 👍 Great game!

**What reviewers complain about**

- 💸 Pay to play
- 💸 Subscription required
- 💸 Expensive
- 💸 Misleading free trial
- 💸 Unusable without payment

**Reported bugs**

- Parts don't connect
- No command center on launch
- Rocket goes to sky and mission complete
- Animations not shown correctly
- Slow rollout animation

**Requested features**

- Add command center
- Add space exploration
- Add more to the game
- Add staging and space rocket control
- Add other planets to land on


## Frequently asked questions

### Is U free?

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

### Is Rocket Simulator free?

Rocket Simulator is free to download, with in-app purchases available.

### Which has better reviews, U or Rocket Simulator?

Rocket Simulator is rated higher. U averages 3.7 out of 5 from 57 ratings, while Rocket Simulator averages 3.8 from 428 ratings.

### Do U or Rocket Simulator have ads?

Rocket Simulator shows ads; U does not.

### Which is updated more often, U or Rocket Simulator?

U ships an update monthly, and Rocket Simulator every 2 months. Most recently, U was updated on October 23, 2026 and Rocket Simulator on October 30, 2026.

---

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