# 氢刻 vs AI背书匠

The clearest difference is rating: 氢刻 at 5.0 against AI背书匠's 4.4. 氢刻 also leads on review sentiment (83% vs 54%) and iOS requirement (13.4 vs 15.0). AI背书匠's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (15 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 氢刻 sells 6 one-off in-app purchases and AI背书匠 sells 7 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

氢刻 holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 15 respectively. Written reviews point the same way: 83% of 氢刻's written reviews are positive against 54% of AI背书匠's.

氢刻 ships an update every 3 weeks, AI背书匠 weekly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 氢刻 | AI背书匠 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ai/id1585104628/reviews)** | [4.4 (15 ratings)](https://appshunter.io/ios/app/ai/id6751886569/reviews) |
| Number of ratings | 5 | **15** |
| Positive reviews | **83.3% of reviews** | 54.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 22 MB | 102 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QingKe Tech Co., Ltd.](https://appshunter.io/developer/1584950202) | [Pixentia Limited](https://appshunter.io/developer/1889428925) |

## What reviewers say

### 氢刻

[App page](https://appshunter.io/ios/app/ai/id1585104628)

This tool helps you capture, organize, and recall information through a structured card system. It uses AI and spaced repetition techniques to enhance memory and learning. Share and import notes to build a personalized knowledge base.

**Highlights:** AI-powered note-taking, Spaced repetition learning, Card-based knowledge base, Content sharing community, Import notes from WeChat Read, Anki-style flashcards

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP of one month | $0.99 | one-time |
| 氢刻专业版-1个月 | $1.99 | one-time |
| VIP of one year | $9.99 | one-time |
| 氢刻专业版-1年 | $14.99 | one-time |
| VIP of three years | $24.99 | one-time |
| 氢刻专业版-3年 | $29.99 | one-time |


### AI背书匠

[App page](https://appshunter.io/ios/app/ai/id6751886569)

This AI-powered tool helps users improve memory and learning efficiency through structured content breakdown, multi-sensory recall, and intelligent testing. It's designed for various learning scenarios, from exam preparation to lifelong learning.

**Highlights:** AI content segmentation, AI summarization for recall, AI keyword cloze for memorization, AI supervised recall tracking, AI intelligent question generation, Multi-sensory learning (audio/visual), Multiple recall modes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 背书匠月度会员 | $5.99 | per month |
| 背书匠月度会员 享用月度会员权益 | $6.99 | per month |
| 背书匠季度会员 | $6.99 | per 3 months |
| 背书匠季度会员 享用季度会员权益 | $19.99 | per 3 months |
| 充值获得VIP资格，永久，一折 | $6.99 | one-time |
| 背书匠永久会员 | $6.99 | one-time |
| 背书匠终身会员 永久享用会员权益 | $12.99 | one-time |


## Frequently asked questions

### Is 氢刻 free?

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

### Is AI背书匠 free?

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

### Which has better reviews, 氢刻 or AI背书匠?

氢刻 is rated higher. 氢刻 averages 5.0 out of 5 from 5 ratings, while AI背书匠 averages 4.4 from 15 ratings.

### Do 氢刻 or AI背书匠 have ads?

Neither 氢刻 nor AI背书匠 shows ads.

### Which is updated more often, 氢刻 or AI背书匠?

氢刻 ships an update every 3 weeks, and AI背书匠 weekly. Most recently, 氢刻 was updated on October 21, 2026 and AI背书匠 on October 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.*