# Gravity Captain vs Build Up!!

The clearest difference is review sentiment: Gravity Captain at 100% against Build Up!!'s 34%. Gravity Captain also leads on rating (5.0 vs 4.5) and iOS requirement (8.0 vs 14.0). Build Up!!'s advantage is update cadence (fortnightly vs every 63 months) and ratings volume (16K vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Gravity Captain sells 1 one-off in-app purchase and Build Up!! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Gravity Captain holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Build Up!! has 16K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Gravity Captain's written reviews are positive against 34% of Build Up!!'s.

Gravity Captain ships an update every 63 months, Build Up!! fortnightly. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Gravity Captain | Build Up!! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gravity-captain/id1293840368/reviews)** | [4.5 (16K ratings)](https://appshunter.io/ios/app/build-up/id1453032346/reviews) |
| Number of ratings | 3 | **16K** |
| Positive reviews | **100.0% of reviews** | 34.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 63 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 266 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mike Hempfling](https://appshunter.io/developer/422781074) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### Gravity Captain

[App page](https://appshunter.io/ios/app/gravity-captain/id1293840368)

Navigate a spacecraft by utilizing thrusters and planetary gravity for slingshot maneuvers. Collect fuel while avoiding collisions with celestial bodies in an endless, replayable challenge.

**Highlights:** Gravity slingshot mechanics, Spacecraft thruster control, Fuel collection, Planet collision avoidance, Randomized replayability, Endless gameplay, Simple controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### 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 Gravity Captain free?

Gravity Captain 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, Gravity Captain or Build Up!!?

Gravity Captain is rated higher. Gravity Captain averages 5.0 out of 5 from 3 ratings, while Build Up!! averages 4.5 from 16K ratings.

### Do Gravity Captain or Build Up!! have ads?

Both Gravity Captain and Build Up!! show ads.

### Which is updated more often, Gravity Captain or Build Up!!?

Gravity Captain ships an update every 63 months, and Build Up!! fortnightly. Most recently, Gravity Captain was updated on September 28, 2026 and Build Up!! 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.*