# DASUNG vs 聊书AI

The clearest difference is in-app purchases: DASUNG at none against 聊书AI's 3. DASUNG also leads on iOS requirement (11.0 vs 13.0). 聊书AI's advantage is update cadence (every 4 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. 聊书AI sells 3 in-app purchases, starting at $6.99 per month. DASUNG asks for nothing beyond the download.

DASUNG ships an update fortnightly, 聊书AI every 4 days. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | DASUNG | 聊书AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dasung-link/id1658501226/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 33 MB | 133 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Dasung Tech Co., Ltd](https://appshunter.io/developer/1658501228) | [群 谢](https://appshunter.io/developer/1473924121) |

## What reviewers say

### DASUNG

[App page](https://appshunter.io/ios/app/dasung-link/id1658501226)

This utility app allows for smart adjustments to compatible e-ink displays. Users can control contrast, speed, picture mode, and front light brightness, along with features like ghosting removal.

**Highlights:** Three-dimensional picture adjustment (contrast, speed, picture mode), Front light brightness control, Smart ghosting removal, Compatibility with Link and Paperlike U (wireless), Intelligent auxiliary software

**Features:** macOS Compatibility

**In-app purchases:** none


### 聊书AI

[App page](https://appshunter.io/ios/app/ai/id6744514782)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 聊书AI包月VIP | $6.99 | per month |
| 聊书AI包年会员 | $49.99 | per year |
| 聊书AI 播客畅听卡 | $0.99 | one-time |


## Frequently asked questions

### Is DASUNG free?

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

### Is 聊书AI free?

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

### Do DASUNG or 聊书AI have ads?

Neither DASUNG nor 聊书AI shows ads.

### Which is updated more often, DASUNG or 聊书AI?

DASUNG ships an update fortnightly, and 聊书AI every 4 days. Most recently, DASUNG was updated on September 30, 2026 and 聊书AI on October 13, 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.*