# Grav Box vs Building Blocks Master

The clearest difference is price: Grav Box at Free against Building Blocks Master's $0.99. Grav Box also leads on update cadence (every 5 months vs every 12 months) and iOS requirement (14.0 vs 18.0). Building Blocks Master's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

Grav Box is free to download; Building Blocks Master costs $0.99 up front. Grav Box sells 10 one-off in-app purchases. Building Blocks Master asks for nothing beyond the download.

Grav Box ships an update every 5 months, Building Blocks Master every 12 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Grav Box | Building Blocks Master |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/grav-box/id1050320618/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 96.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 1.1 GB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Capraro](https://appshunter.io/developer/1691787728) | [hideyuki kubo](https://appshunter.io/developer/897717221) |

## What reviewers say

### Grav Box

[App page](https://appshunter.io/ios/app/grav-box/id1050320618)

Control gravity with a tap and hold to manipulate objects. Customize their appearance, explore dynamic physics, and engage in arcade challenges with leaderboards and achievements.

**Highlights:** Tap and hold to control gravity, Customize grav colors and emojis, Dynamic backgrounds and physics effects, Arcade mode with achievements, Global leaderboards, In-game events like black holes

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Blocks (100) Pack | $0.99 | one-time |
| Light Portal | $0.99 | one-time |
| Dark Portal | $0.99 | one-time |
| Grav Box | $0.99 | one-time |
| Midnight | $0.99 | one-time |
| Daybreak | $0.99 | one-time |
| Beach | $0.99 | one-time |
| Jungle | $0.99 | one-time |
| Mist | $0.99 | one-time |
| Gold Blocks (1000) Pack | $4.99 | one-time |


### Building Blocks Master

[App page](https://appshunter.io/ios/app/building-blocks-master/id1488276789)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Grav Box free?

Grav Box is free to download, with in-app purchases available.

### Is Building Blocks Master free?

Building Blocks Master costs $0.99, with no in-app purchases.

### Do Grav Box or Building Blocks Master have ads?

Grav Box shows ads; Building Blocks Master does not.

### Which is updated more often, Grav Box or Building Blocks Master?

Grav Box ships an update every 5 months, and Building Blocks Master every 12 months. Most recently, Grav Box was updated on October 13, 2026 and Building Blocks Master on October 8, 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.*