# ChallengeUp vs RandoMath

The clearest difference is in-app purchases: RandoMath at none against ChallengeUp's 5. ChallengeUp's advantage is iOS requirement (13.0 vs 18.0). On price there is nothing between them.

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

## The numbers

| Metric | ChallengeUp | RandoMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | — | Every 2 days |
| Size | 25 MB | 19 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Atilla Okumus](https://appshunter.io/developer/1658756776) | [Asgar Amrahov](https://appshunter.io/developer/1783397230) |

## 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 |


### RandoMath

[App page](https://appshunter.io/ios/app/randomath-math-duel/id6739009027)

**In-app purchases:** none


## Frequently asked questions

### Is ChallengeUp free?

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

### Is RandoMath free?

RandoMath 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.*