# ChallengeUp vs Guess This Flag

The clearest difference is in-app purchases: Guess This Flag at none against ChallengeUp's 5. Guess This Flag also leads on device support. ChallengeUp's advantage is iOS requirement (13.0 vs 15.1). On price there is nothing between them.

Both are free to download. ChallengeUp sells 5 one-off in-app purchases. Guess This Flag asks for nothing beyond the download.

## The numbers

| Metric | ChallengeUp | Guess This Flag |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | — | Every 4 days |
| Size | 25 MB | 39 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Atilla Okumus](https://appshunter.io/developer/1658756776) | [Liraz Hadad](https://appshunter.io/developer/1501656086) |

## What reviewers say

### ChallengeUp

[App page](https://appshunter.io/ios/app/challengeup/id1658756534)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Energy | $0.99 | one-time |
| 25 Energy | $1.99 | one-time |
| 50 Energy | $2.99 | one-time |
| 100 Energy | $3.99 | one-time |
| Premium | $9.99 | one-time |


### Guess This Flag

[App page](https://appshunter.io/ios/app/guess-this-flag/id6470826763)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChallengeUp free?

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

### Is Guess This Flag free?

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

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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.*