# Rocket Sky! vs Build Up!!

The clearest difference is update cadence: Build Up!! at fortnightly against Rocket Sky!'s every 3 months. Build Up!! also leads on review sentiment (34% vs 17%). Rocket Sky!'s advantage is ratings volume (108K vs 16K). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Rocket Sky! sells 6 in-app purchases, starting at $5.49 per 7 days and Build Up!! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Rocket Sky! against 4.5 for Build Up!!. That said, the two scores are not equally well evidenced: Rocket Sky! has 108K ratings behind it against 16K, so its average is the more settled of the two. Written reviews are what separate them: 17% of Rocket Sky!'s written reviews are positive against 34% of Build Up!!'s.

Rocket Sky! ships an update every 3 months, Build Up!! fortnightly. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Rocket Sky! | Build Up!! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (108K ratings)](https://appshunter.io/ios/app/rocket-sky/id1444727745/reviews) | [4.5 (16K ratings)](https://appshunter.io/ios/app/build-up/id1453032346/reviews) |
| Number of ratings | **108K** | 16K |
| Positive reviews | 17.2% of reviews | **34.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 267 MB | 266 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Kwalee Ltd](https://appshunter.io/developer/497961736) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### 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


### Build Up!!

[App page](https://appshunter.io/ios/app/build-up/id1453032346)

Construct your tower as tall as possible by strategically placing building nodes. Collect more nodes as you ascend to reach crucial checkpoints and achieve new heights.

**Highlights:** Build structures high, Gather building nodes, Reach checkpoints, Ascend to new heights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads. | $2.99 | one-time |

**What reviewers like**

- 👍 Simple and fun game
- 🚀 Runs well with no crashes
- 💰 Free to play

**What reviewers complain about**

- 💸 Excessive ads
- 🐛 Impossible or buggy levels
- 🔁 Repetitive gameplay

**Reported bugs**

- Rivet counter malfunction
- Levels regenerating incorrectly
- Tower physics issues

**Requested features**

- More level variety
- Ability to create custom maps
- Removal of perfect triangle requirement


## Frequently asked questions

### Is Rocket Sky! free?

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

### Is Build Up!! free?

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

### Which has better reviews, Rocket Sky! or Build Up!!?

Rocket Sky! and Build Up!! are both rated 4.5 out of 5 on the App Store, from 108K and 16K ratings respectively.

### Do Rocket Sky! or Build Up!! have ads?

Both Rocket Sky! and Build Up!! show ads.

### Which is updated more often, Rocket Sky! or Build Up!!?

Rocket Sky! ships an update every 3 months, and Build Up!! fortnightly. Most recently, Rocket Sky! was updated on October 18, 2026 and Build Up!! on October 17, 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.*