# 书言笔记 vs DKChat AI

The clearest difference is update cadence: DKChat AI at every 5 days against 书言笔记's every 4 months. DKChat AI also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 书言笔记 sells 3 in-app purchases, starting at $1.99 per month and DKChat AI sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

书言笔记 ships an update every 4 months, DKChat AI every 5 days. Both last shipped on October 4, 2026.

## The numbers

| Metric | 书言笔记 | DKChat AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 34 MB | 129 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [钊辉 李](https://appshunter.io/developer/1561520729) | [Shanghai Beiyan Technology Co.,Ltd](https://appshunter.io/developer/1786080773) |

## What reviewers say

### 书言笔记

[App page](https://appshunter.io/ios/app/id6444200022)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $1.99 | per month |
| 半年会员 | $6.99 | per 6 months |
| 年会员 | $12.99 | per year |


### DKChat AI

[App page](https://appshunter.io/ios/app/dkchat-ai/id6749002789)

Stay connected and engaged with friends and family through real-time messaging and social updates. Share your moments and build lasting relationships within a vibrant community.

**Highlights:** Real-time messaging, Social updates, Friend connections, Community engagement, Moment sharing

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 84 DK 豆 | $1.99 | one-time |
| 350 DK 豆 | $6.99 | one-time |
| 700 DK 豆 | $14.99 | one-time |
| 2100 DK 豆 | $39.99 | one-time |
| 3500 DK 豆 | $69.99 | one-time |


## Frequently asked questions

### Is 书言笔记 free?

书言笔记 is free to download, with in-app purchases available.

### Is DKChat AI free?

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

### Do 书言笔记 or DKChat AI have ads?

Neither 书言笔记 nor DKChat AI shows ads.

### Which is updated more often, 书言笔记 or DKChat AI?

书言笔记 ships an update every 4 months, and DKChat AI every 5 days. Most recently, 书言笔记 was updated on October 4, 2026 and DKChat AI on October 4, 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.*