# Impossible 7! vs Rocket Sky!

The clearest difference is review sentiment: Impossible 7! at 63% against Rocket Sky!'s 17%. Impossible 7! also leads on in-app purchases (none vs 9) and ads (none vs shown). Rocket Sky!'s advantage is update cadence (every 3 months vs every 63 months) and rating (4.5 vs 4.1). On price and device support there is nothing between them.

Both are free to download. Rocket Sky! sells 6 in-app purchases, starting at $5.49 per 7 days. Impossible 7! asks for nothing beyond the download.

Rocket Sky! holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: Rocket Sky! has 108K ratings behind it against 48, so its average is the more settled of the two. Written reviews complicate that: 63% of Impossible 7!'s written reviews are positive against 17% of Rocket Sky!'s, so the app with the better star average is not the one people write more warmly about.

Impossible 7! ships an update every 63 months, Rocket Sky! every 3 months. The most recent releases landed on September 23, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Impossible 7! | Rocket Sky! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (48 ratings)](https://appshunter.io/ios/app/impossible-7/id474216810/reviews) | **[4.5 (108K ratings)](https://appshunter.io/ios/app/rocket-sky/id1444727745/reviews)** |
| Number of ratings | 48 | **108K** |
| Positive reviews | **62.5% of reviews** | 17.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 63 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 267 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Kfirapps Limited](https://appshunter.io/developer/1131751327) | [Kwalee Ltd](https://appshunter.io/developer/497961736) |

## What reviewers say

### Impossible 7!

[App page](https://appshunter.io/ios/app/impossible-7/id474216810)

Test your speed, skill, and rhythm by counting as high as possible while avoiding numbers divisible by 7 or containing the digit 7. Features three distinct game modes to challenge players of all levels.

**Highlights:** Speed, skill, and rhythm gameplay, Avoid numbers divisible by 7, Avoid numbers containing the digit 7, Three distinct game modes, Leaderboards and Game Center support, Simple to play, difficult to master

**Features:** macOS Compatibility

**In-app purchases:** none


### Rocket Sky!

[App page](https://appshunter.io/ios/app/rocket-sky/id1444727745)

Tap and hold to launch your rocket, managing heat to avoid overheating. Upgrade your rocket to reach new heights, break records, and explore diverse planets. Unlock new rockets and enjoy a colorful 2D space adventure.

**Highlights:** Tap and hold to launch, Manage rocket heat, Rocket upgrades, Explore new planets, Unlock rockets, Colorful 2D design

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP MEMBERSHIP | $5.49 | per 7 days |
| MONTHLY VIP MEMBERSHIP | $14.49 | per month |
| Special Event | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Explorer's Pack | $9.99 | one-time |
| Explorer's Pack | $24.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive gameplay
- 👍 Simple and intuitive controls
- 🚀 Satisfying rocket upgrades and progression

**What reviewers complain about**

- 🔥 Excessive and intrusive advertisements
- 🔒 Requires internet connection to play
- 🐛 Inconsistent gameplay and glitches
- 💰 Monetization model feels exploitative

**Reported bugs**

- Freezing and crashing after watching ads
- Inconsistent rocket performance and height
- Upgrade options not working as expected

**Requested features**

- Offline play mode
- More planets and rocket variety
- Reduced advertisement frequency
- Ability to permanently remove ads


## Frequently asked questions

### Is Impossible 7! free?

Impossible 7! is free to download, with no in-app purchases.

### Is Rocket Sky! free?

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

### Which has better reviews, Impossible 7! or Rocket Sky!?

Rocket Sky! is rated higher. Impossible 7! averages 4.1 out of 5 from 48 ratings, while Rocket Sky! averages 4.5 from 108K ratings.

### Do Impossible 7! or Rocket Sky! have ads?

Rocket Sky! shows ads; Impossible 7! does not.

### Which is updated more often, Impossible 7! or Rocket Sky!?

Impossible 7! ships an update every 63 months, and Rocket Sky! every 3 months. Most recently, Impossible 7! was updated on September 23, 2026 and Rocket Sky! on September 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.*