# Brain Quiz Master vs Ball Stack

The clearest difference is in-app purchases: Ball Stack at none against Brain Quiz Master's 1. Ball Stack also leads on iOS requirement (11.0 vs 15.0). Brain Quiz Master's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Brain Quiz Master sells 1 one-off in-app purchase. Ball Stack asks for nothing beyond the download.

Brain Quiz Master ships an update every 3 days, Ball Stack every 3 weeks. The most recent releases landed on October 27, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Brain Quiz Master | Ball Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 10 MB | 2 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amine Arous](https://appshunter.io/developer/374790416) | [Rufe.org LLC](https://appshunter.io/developer/1683900465) |

## What reviewers say

### Brain Quiz Master

[App page](https://appshunter.io/ios/app/brain-quiz-master/id6446297886)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Ball Stack

[App page](https://appshunter.io/ios/app/ball-stack-color-sort-puzzle/id6470507681)

**In-app purchases:** none


## Frequently asked questions

### Is Brain Quiz Master free?

Brain Quiz Master is free to download, with in-app purchases available.

### Is Ball Stack free?

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

### Do Brain Quiz Master or Ball Stack have ads?

Neither Brain Quiz Master nor Ball Stack shows ads.

### Which is updated more often, Brain Quiz Master or Ball Stack?

Brain Quiz Master ships an update every 3 days, and Ball Stack every 3 weeks. Most recently, Brain Quiz Master was updated on October 27, 2026 and Ball Stack 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.*