# Сложение до 10 vs LETTòRE

The clearest difference is price: LETTòRE at Free against Сложение до 10's $2.99. LETTòRE also leads on update cadence (monthly vs every 36 months). Сложение до 10's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On ads and device support there is nothing between them.

LETTòRE is free to download; Сложение до 10 costs $2.99 up front. LETTòRE sells 2 in-app purchases, starting at $4.99 per month. Сложение до 10 asks for nothing beyond the download.

Сложение до 10 ships an update every 36 months, LETTòRE monthly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Сложение до 10 | LETTòRE |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Monthly** |
| Size | 18 MB | 14 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Evgenia Revutskaya](https://appshunter.io/developer/1831981593) |

## What reviewers say

### Сложение до 10

[App page](https://appshunter.io/ios/app/10/id578054035)

**Features:** macOS Compatibility

**In-app purchases:** none


### LETTòRE

[App page](https://appshunter.io/ios/app/lettore/id6749767372)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Плюс на месяц | $4.99 | per month |
| ПРО на месяц | $12.99 | per month |


## Frequently asked questions

### Is Сложение до 10 free?

Сложение до 10 costs $2.99, with no in-app purchases.

### Is LETTòRE free?

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

### Do Сложение до 10 or LETTòRE have ads?

Neither Сложение до 10 nor LETTòRE shows ads.

### Which is updated more often, Сложение до 10 or LETTòRE?

Сложение до 10 ships an update every 36 months, and LETTòRE monthly. Most recently, Сложение до 10 was updated on October 31, 2026 and LETTòRE on October 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.*