# Dr. Rocket vs OOOO by Lemon Jam

The clearest difference is ads: OOOO by Lemon Jam at none against Dr. Rocket's shown. OOOO by Lemon Jam also leads on review sentiment (100% vs 72%) and monetization model (free vs ad-supported). Dr. Rocket's advantage is rating (4.4 vs 4.0) and ratings volume (54 vs 2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dr. Rocket holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Dr. Rocket has 54 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 72% of Dr. Rocket's written reviews are positive against 100% of OOOO by Lemon Jam's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Dr. Rocket | OOOO by Lemon Jam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (54 ratings)](https://appshunter.io/ios/app/dr-rocket/id981111702/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/oooo-by-lemon-jam/id1129729280/reviews) |
| Number of ratings | **54** | 2 |
| Positive reviews | 72.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Ad-supported | **Free** |
| Size | 8 MB | 21 MB |
| Requires iOS | 12.0 | **7.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SUD Inc.](https://appshunter.io/developer/453469451) | [Lemon Jam Technology Co., Ltd.](https://appshunter.io/developer/884737211) |

## What reviewers say

### Dr. Rocket

[App page](https://appshunter.io/ios/app/dr-rocket/id981111702)

Pilot your rocket through space by tapping the screen to steer. Test your reflexes and see how far you can travel in this simple, arcade-style game.

**Highlights:** Simple touch controls, Rocket flight simulation, Endless space journey, High score chasing

**Features:** Vision Pro support

**In-app purchases:** none


### OOOO by Lemon Jam

[App page](https://appshunter.io/ios/app/oooo-by-lemon-jam/id1129729280)

Embark on a journey through an abstract world of colors and shapes. This game offers a relaxing experience with original music and an elegant design across multiple rotating worlds and challenging levels.

**Highlights:** 4 Rotating Worlds, 80 Challenging Levels, Original Music, Elegant Design, Relaxing Experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dr. Rocket free?

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

### Is OOOO by Lemon Jam free?

OOOO by Lemon Jam is free to download, with no in-app purchases.

### Which has better reviews, Dr. Rocket or OOOO by Lemon Jam?

Dr. Rocket is rated higher. Dr. Rocket averages 4.4 out of 5 from 54 ratings, while OOOO by Lemon Jam averages 4.0 from 2 ratings.

### Do Dr. Rocket or OOOO by Lemon Jam have ads?

Dr. Rocket shows ads; OOOO by Lemon Jam 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.*