# 81 Rush vs Just get 13

The clearest difference is in-app purchases: Just get 13 at none against 81 Rush's 3. 81 Rush's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. 81 Rush sells 3 one-off in-app purchases. Just get 13 asks for nothing beyond the download.

## The numbers

| Metric | 81 Rush | Just get 13 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (31 ratings)](https://appshunter.io/ios/app/81-rush/id881743883/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 129 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Hoang Phan](https://appshunter.io/developer/881747886) | [Michiel Mol](https://appshunter.io/developer/1080344887) |

## What reviewers say

### 81 Rush

[App page](https://appshunter.io/ios/app/81-rush/id881743883)

A 9x9 board puzzle game where players tap numbers from 1 to 81 in ascending order. It requires focus, speed, and memory to achieve high scores.

**Highlights:** 9x9 board puzzle, Tap numbers 1-81, Ascending order gameplay, Focus and speed challenge, High score pursuit

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Pass · 1 Month | $0.99 | one-time |
| Ad-Free Pass · 3 Months | $1.99 | one-time |
| No more Ads | $9.99 | one-time |


### Just get 13

[App page](https://appshunter.io/ios/app/just-get-13/id6478442554)

**In-app purchases:** none


## Frequently asked questions

### Is 81 Rush free?

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

### Is Just get 13 free?

Just get 13 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.*