# CandyBook vs Block Stack 3D Brain Game

The clearest difference is ads: CandyBook at none against Block Stack 3D Brain Game's shown. CandyBook also leads on iOS requirement (9.0 vs 12.0). Block Stack 3D Brain Game's advantage is update cadence (every 2 weeks vs every 3 months). 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.

CandyBook ships an update every 3 months, Block Stack 3D Brain Game every 2 weeks. The most recent releases landed on September 14, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | CandyBook | Block Stack 3D Brain Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/block-stack-3d-brain-game/id1629553393/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 60 MB | 69 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [CandyBook](https://appshunter.io/developer/952184217) | [永荣 许](https://appshunter.io/developer/1314358203) |

## What reviewers say

### CandyBook

[App page](https://appshunter.io/ios/app/candybook-ar/id955299351)

**Features:** macOS Compatibility

**In-app purchases:** none


### Block Stack 3D Brain Game

[App page](https://appshunter.io/ios/app/block-stack-3d-brain-game/id1629553393)

A 3D puzzle game that challenges your spatial imagination by stacking cubes. Compete for high scores in infinite or level-based modes with adjustable viewing angles.

**Highlights:** 3D stereoscopic cube stacking, Tests space imagination, Infinite mode, Level mode, Adjustable viewing angles, High score achievement

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

**In-app purchases:** none


## Frequently asked questions

### Is CandyBook free?

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

### Is Block Stack 3D Brain Game free?

Block Stack 3D Brain Game is free to download, with no in-app purchases.

### Do CandyBook or Block Stack 3D Brain Game have ads?

Block Stack 3D Brain Game shows ads; CandyBook does not.

### Which is updated more often, CandyBook or Block Stack 3D Brain Game?

CandyBook ships an update every 3 months, and Block Stack 3D Brain Game every 2 weeks. Most recently, CandyBook was updated on September 14, 2026 and Block Stack 3D Brain Game on September 12, 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.*