# A4 Typer vs Красный Синий

The clearest difference is rating: A4 Typer at 4.5 against Красный Синий's 4.0. A4 Typer also leads on review sentiment (68% vs 43%). Красный Синий's advantage is in-app purchases (none vs 5) and update cadence (weekly vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. A4 Typer sells 5 one-off in-app purchases. Красный Синий asks for nothing beyond the download.

A4 Typer holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 133 and 46 respectively. Written reviews point the same way: 68% of A4 Typer's written reviews are positive against 43% of Красный Синий's.

A4 Typer ships an update every 3 months, Красный Синий weekly. The most recent releases landed on September 28, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | A4 Typer | Красный Синий |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (133 ratings)](https://appshunter.io/ios/app/a4-typer/id1585813286/reviews)** | [4.0 (46 ratings)](https://appshunter.io/ios/app/id6469633721/reviews) |
| Number of ratings | **133** | 46 |
| Positive reviews | **67.7% of reviews** | 43.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 242 MB | 117 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Ip investment](https://appshunter.io/developer/1689946227) | [Anvarkhon Isoqov](https://appshunter.io/developer/1712330252) |

## What reviewers say

### A4 Typer

[App page](https://appshunter.io/ios/app/a4-typer/id1585813286)

Engage in a fun racing game designed to boost your typing speed and cognitive skills. Complete diverse missions, from word trivia to fast-paced typing challenges, to become the champion. Compete with friends and players worldwide in this unique brain-training experience.

**Highlights:** Typing speed racing game, Word trivia mini-games, Challenge friends and other players, Typing training texts for common letter combinations, Funny characters and beautiful levels, Simple user interface

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Малый комплект золота | $0.99 | one-time |
| Средний комплект золота | $1.99 | one-time |
| Отключить рекламу | $2.99 | one-time |
| Большой комплект золота | $4.99 | one-time |
| Огромный комплект золота | $9.99 | one-time |


### Красный Синий

[App page](https://appshunter.io/ios/app/id6469633721)

Enhance cognitive functions like memory, concentration, and intelligence through engaging brain training exercises based on the Stroop effect. Compete in daily tournaments, earn coins, and track your progress to achieve peak mental performance.

**Highlights:** Stroop effect exercises, Memory improvement, Concentration boost, Intelligence enhancement, Daily tournaments, Leaderboards, Coin rewards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A4 Typer free?

A4 Typer is free to download, with in-app purchases available.

### Is Красный Синий free?

Красный Синий is free to download, with no in-app purchases.

### Which has better reviews, A4 Typer or Красный Синий?

A4 Typer is rated higher. A4 Typer averages 4.5 out of 5 from 133 ratings, while Красный Синий averages 4.0 from 46 ratings.

### Do A4 Typer or Красный Синий have ads?

Both A4 Typer and Красный Синий show ads.

### Which is updated more often, A4 Typer or Красный Синий?

A4 Typer ships an update every 3 months, and Красный Синий weekly. Most recently, A4 Typer was updated on September 28, 2026 and Красный Синий on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*