# Bắt Chữ vs Knowledge Arena

The clearest difference is rating: Knowledge Arena at 5.0 against Bắt Chữ's 2.7. Knowledge Arena also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). Bắt Chữ's advantage is in-app purchases (none vs 1) and ratings volume (14 vs 3). On price and device support there is nothing between them.

Both are free to download. Knowledge Arena sells 1 one-off in-app purchase. Bắt Chữ asks for nothing beyond the download.

Knowledge Arena holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 14 and 3 respectively.

Bắt Chữ ships an update every 2 months, Knowledge Arena every 3 days. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Bắt Chữ | Knowledge Arena |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (14 ratings)](https://appshunter.io/ios/app/bat-chu/id765366168/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/knowledge-arena/id1450066612/reviews)** |
| Number of ratings | **14** | 3 |
| Positive reviews | 38.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 61 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WePlay Media and Technology Joint Stock Company](https://appshunter.io/developer/1184824861) | [Hoa Nguyen Quang](https://appshunter.io/developer/1434185665) |

## What reviewers say

### Bắt Chữ

[App page](https://appshunter.io/ios/app/bat-chu/id765366168)

This game challenges players to decipher witty wordplay hidden within familiar images. It offers a fun and engaging way to test your knowledge of Vietnamese, Sino-Vietnamese, and even English vocabulary across various topics. Enjoy a vibrant visual experience with simple, intuitive gameplay.

**Highlights:** Decipher wordplay from images, Test Vietnamese & English vocabulary, Wide range of knowledge topics, Simple, intuitive gameplay, Vibrant, lively graphics, Free to play

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and engaging gameplay
- 💡 Creative and unique game concept
- 😄 Makes players think ('hại não')
- 👍 Good for entertainment
- 👍 Connects people

**What reviewers complain about**

- 😠 Too many ads
- 😠 Ads without skipping
- 😠 Game is slow
- 😠 Frequent crashes and bugs
- 😠 Disconnects from server

**Reported bugs**

- Ads between questions without skipping
- Game crashes frequently
- Game freezes or lags
- Disconnects from server
- Ads that cannot be closed

**Requested features**

- Update with more questions
- Add HD version for iPad
- Allow choosing tiles to open
- Provide explanations for answers
- Update with new versions more frequently


### Knowledge Arena

[App page](https://appshunter.io/ios/app/knowledge-arena/id1450066612)

This game challenges your knowledge across multiple languages with various difficulty levels and modes. Utilize helpful supports to overcome tough questions and compete on global leaderboards. Train your brain with tens of thousands of questions covering diverse topics.

**Highlights:** Multiple difficulty levels (Easy, Medium, Hard, Synthetic), Practice and test modes, Four types of user supports (Change Questions, Audience, Call, 50/50), 10 question packages in various languages, Online ranking and leaderboard, Sound effects

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Bắt Chữ free?

Bắt Chữ is free to download, with no in-app purchases.

### Is Knowledge Arena free?

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

### Which has better reviews, Bắt Chữ or Knowledge Arena?

Knowledge Arena is rated higher. Bắt Chữ averages 2.7 out of 5 from 14 ratings, while Knowledge Arena averages 5.0 from 3 ratings.

### Do Bắt Chữ or Knowledge Arena have ads?

Bắt Chữ shows ads; Knowledge Arena does not.

### Which is updated more often, Bắt Chữ or Knowledge Arena?

Bắt Chữ ships an update every 2 months, and Knowledge Arena every 3 days. Most recently, Bắt Chữ was updated on October 20, 2026 and Knowledge Arena on October 17, 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.*