# Stacks Up! vs Duel Run!

Stacks Up! and Duel Run! are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Stacks Up! | Duel Run! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 days | — |
| Size | 293 MB | 227 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Umut Sahin](https://appshunter.io/developer/1669671425) | [Lutfi Baykan](https://appshunter.io/developer/1330662150) |

## What reviewers say

### Stacks Up!

[App page](https://appshunter.io/ios/app/stacks-up/id6741157938)

**Features:** macOS Compatibility

**In-app purchases:** none


### Duel Run!

[App page](https://appshunter.io/ios/app/duel-run/id6743707718)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stacks Up! free?

Stacks Up! is free to download, with no in-app purchases.

### Is Duel Run! free?

Duel Run! is free to download, with no in-app purchases.

### Do Stacks Up! or Duel Run! have ads?

Both Stacks Up! and Duel Run! show ads.

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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.*