# BrainSpark Quiz vs Clue Stack

The clearest difference is in-app purchases: Clue Stack at none against BrainSpark Quiz's 3. Clue Stack also leads on iOS requirement (13.0 vs 15.0). BrainSpark Quiz's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. BrainSpark Quiz sells 3 one-off in-app purchases. Clue Stack asks for nothing beyond the download.

BrainSpark Quiz ships an update weekly, Clue Stack every 3 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BrainSpark Quiz | Clue Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/brainspark-quiz/id6762555040/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 387 MB | 243 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Chira Kamau](https://appshunter.io/developer/1714160329) | [GAMEPROMO CO., LIMITED](https://appshunter.io/developer/1619749576) |

## What reviewers say

### BrainSpark Quiz

[App page](https://appshunter.io/ios/app/brainspark-quiz/id6762555040)

Engage in a thrilling trivia challenge with thousands of questions across diverse categories like history, science, and sports. This brain-training experience offers dynamic gameplay, progress tracking, and offline support, making learning fun and rewarding.

**Highlights:** Thousands of trivia questions, Diverse topics, Dynamic timed gameplay, Progress tracking, Offline support, Beautiful visuals

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bag of Coins | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Chest of Coins | $1.99 | one-time |


### Clue Stack

[App page](https://appshunter.io/ios/app/clue-stack/id6775158548)

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainSpark Quiz free?

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

### Is Clue Stack free?

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

### Do BrainSpark Quiz or Clue Stack have ads?

Both BrainSpark Quiz and Clue Stack show ads.

### Which is updated more often, BrainSpark Quiz or Clue Stack?

BrainSpark Quiz ships an update weekly, and Clue Stack every 3 weeks. Most recently, BrainSpark Quiz was updated on October 31, 2026 and Clue Stack on October 25, 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.*