# Вычитание и сложение до 10 vs Delta单词

The clearest difference is price: Delta单词 at Free against Вычитание и сложение до 10's $2.99. Delta单词 also leads on update cadence (daily vs every 36 months). Вычитание и сложение до 10's advantage is iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Delta单词 is free to download; Вычитание и сложение до 10 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Вычитание и сложение до 10 ships an update every 36 months, Delta单词 daily. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Вычитание и сложение до 10 | Delta单词 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Daily** |
| Monetization | Paid | — |
| Size | 18 MB | 180 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [田丰 何](https://appshunter.io/developer/1674464316) |

## What reviewers say

### Вычитание и сложение до 10

[App page](https://appshunter.io/ios/app/10/id577942601)

This app makes learning addition and subtraction up to 10 fun for preschoolers and first graders. It features four adaptive mini-games and a unique handwriting recognition system for practicing numbers.

**Highlights:** Interactive mini-games, Adaptive difficulty, Handwriting recognition, Addition and subtraction practice, Number writing skill development

**Features:** macOS Compatibility

**In-app purchases:** none


### Delta单词

[App page](https://appshunter.io/ios/app/delta/id6744654342)

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

**In-app purchases:** none


## Frequently asked questions

### Is Вычитание и сложение до 10 free?

Вычитание и сложение до 10 costs $2.99, with no in-app purchases.

### Is Delta单词 free?

Delta单词 is free to download, with no in-app purchases.

### Do Вычитание и сложение до 10 or Delta单词 have ads?

Neither Вычитание и сложение до 10 nor Delta单词 shows ads.

### Which is updated more often, Вычитание и сложение до 10 or Delta单词?

Вычитание и сложение до 10 ships an update every 36 months, and Delta单词 daily. Most recently, Вычитание и сложение до 10 was updated on October 10, 2026 and Delta单词 on September 24, 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.*