# I learn 1x1 vs 4 Plus 4

The clearest difference is in-app purchases: I learn 1x1 at none against 4 Plus 4's 1. I learn 1x1 also leads on iOS requirement (9.3 vs 13.0). 4 Plus 4's advantage is update cadence (monthly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. 4 Plus 4 sells 1 one-off in-app purchase. I learn 1x1 asks for nothing beyond the download.

I learn 1x1 ships an update every 6 months, 4 Plus 4 monthly. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | I learn 1x1 | 4 Plus 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4-plus-4/id1602292243/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | — | Free |
| Size | 34 MB | 38 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flavian Kaufmann](https://appshunter.io/developer/1053409233) | [Patrick Koehnen](https://appshunter.io/developer/431219217) |

## What reviewers say

### I learn 1x1

[App page](https://appshunter.io/ios/app/i-learn-1x1/id1114654416)

**In-app purchases:** none


### 4 Plus 4

[App page](https://appshunter.io/ios/app/4-plus-4/id1602292243)

This app offers a clear, step-by-step approach to learning mathematics. It features structured modules for number basics, arithmetic, and fractions, with playful sections to apply learned concepts. Designed to make math understandable and enjoyable, it's ideal for beginners and for refreshing knowledge.

**Highlights:** Clear learning modules, Step-by-step guidance, Structured practice, Playful application sections, Progress tracking, Ad-free experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Inclusive | $1.99 | one-time |


## Frequently asked questions

### Is I learn 1x1 free?

I learn 1x1 is free to download, with no in-app purchases.

### Is 4 Plus 4 free?

4 Plus 4 is free to download, with in-app purchases available.

### Do I learn 1x1 or 4 Plus 4 have ads?

Neither I learn 1x1 nor 4 Plus 4 shows ads.

### Which is updated more often, I learn 1x1 or 4 Plus 4?

I learn 1x1 ships an update every 6 months, and 4 Plus 4 monthly. Most recently, I learn 1x1 was updated on October 12, 2026 and 4 Plus 4 on September 29, 2026.

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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.*