# Flag Quiz vs STACKOUT

The clearest difference is ads: Flag Quiz at none against STACKOUT's shown. Flag Quiz also leads on device support (3 vs 1). STACKOUT's advantage is update cadence (weekly vs monthly). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flag Quiz ships an update monthly, STACKOUT weekly. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Flag Quiz | STACKOUT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Size | 37 MB | 170 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ali Eren SEVINC](https://appshunter.io/developer/1751933016) | [Ricardo Pinheiro](https://appshunter.io/developer/6789625668) |

## What reviewers say

### Flag Quiz

[App page](https://appshunter.io/ios/app/flag-quiz-world-trivia-game/id6754269937)

**Features:** macOS Compatibility

**In-app purchases:** none


### STACKOUT

[App page](https://appshunter.io/ios/app/stackout-math-blocks/id6794347940)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flag Quiz free?

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

### Is STACKOUT free?

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

### Do Flag Quiz or STACKOUT have ads?

STACKOUT shows ads; Flag Quiz does not.

### Which is updated more often, Flag Quiz or STACKOUT?

Flag Quiz ships an update monthly, and STACKOUT weekly. Most recently, Flag Quiz was updated on October 3, 2026 and STACKOUT on October 10, 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.*