# 11x13 vs 1×1 Master

The clearest difference is in-app purchases: 11x13 at none against 1×1 Master's 3. 11x13 also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price and ads there is nothing between them.

Both are free to download. 1×1 Master sells 3 one-off in-app purchases. 11x13 asks for nothing beyond the download.

## The numbers

| Metric | 11x13 | 1×1 Master |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | — |
| Monetization | Free | — |
| Size | 2 MB | 1 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Hennemeyer](https://appshunter.io/developer/352918135) | [Sascha Wagner](https://appshunter.io/developer/1888523022) |

## What reviewers say

### 11x13

[App page](https://appshunter.io/ios/app/11x13/id1345978316)

This app offers daily math practice to improve number familiarity and overcome math reservations. It focuses on basic arithmetic operations with visual progress tracking through charts and grids. Daily practice sessions can enhance fundamental mathematical skills.

**Highlights:** Daily math practice, Basic arithmetic operations, Progress visualization, Personalized calculation levels, Leaderboard integration, Number range grids

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

**In-app purchases:** none


### 1×1 Master

[App page](https://appshunter.io/ios/app/11-master/id6785290352)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Schüler | $2.00 | one-time |
| Supporter | $4.00 | one-time |
| Hero | $9.00 | one-time |


## Frequently asked questions

### Is 11x13 free?

11x13 is free to download, with no in-app purchases.

### Is 1×1 Master free?

1×1 Master is free to download, with in-app purchases available.

### Do 11x13 or 1×1 Master have ads?

Neither 11x13 nor 1×1 Master shows 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.*