# 1x1. Lite vs Lemma

The clearest difference is iOS requirement: 1x1. Lite at 13.0 against Lemma's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 1x1. Lite sells 1 one-off in-app purchase and Lemma sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 1x1. Lite | Lemma |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Size | 25 MB | 3 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [creasoft.de](https://appshunter.io/developer/537049278) | [SHAUNAK NAVIN DESAI](https://appshunter.io/developer/1868168210) |

## What reviewers say

### 1x1. Lite

[App page](https://appshunter.io/ios/app/1x1-lite/id861432058)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock full version | $0.99 | one-time |


### Lemma

[App page](https://appshunter.io/ios/app/lemma-socratic-maths-tutor/id6759090110)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lemma Pro Monthly | $4.99 | per month |


## Frequently asked questions

### Is 1x1. Lite free?

1x1. Lite is free to download, with in-app purchases available.

### Is Lemma free?

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

### Do 1x1. Lite or Lemma have ads?

Neither 1x1. Lite nor Lemma shows ads.

### Which is updated more often, 1x1. Lite or Lemma?

1x1. Lite ships an update every 4 months, and Lemma every 4 months. Most recently, 1x1. Lite was updated on October 24, 2026 and Lemma on October 10, 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.*