# 记乎 vs AI背书匠

记乎 and AI背书匠 both sit at 4.2 stars, but that hides the real split: 82% of 记乎's written reviews are positive against 54% of AI背书匠's. 记乎 also leads on update cadence (every 2 days vs weekly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 记乎 sells 10 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.

On the App Store both sit at effectively the same score — 4.2 for 记乎 against 4.2 for AI背书匠. Both are backed by a comparable volume of ratings — 35 and 16 respectively. Written reviews are what separate them: 82% of 记乎's written reviews are positive against 54% of AI背书匠's.

记乎 ships an update every 2 days, AI背书匠 weekly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 记乎 | AI背书匠 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (35 ratings)](https://appshunter.io/ios/app/id1460634473/reviews)** | [4.2 (16 ratings)](https://appshunter.io/ios/app/ai/id6751886569/reviews) |
| Number of ratings | **35** | 16 |
| Positive reviews | **82.1% of reviews** | 54.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | Freemium | Freemium |
| Size | 91 MB | 103 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [四川金字塔教育咨询有限公司](https://appshunter.io/developer/1194953013) | [Pixentia Limited](https://appshunter.io/developer/1889428925) |

## What reviewers say

### 记乎

[App page](https://appshunter.io/ios/app/id1460634473)

This app uses the Ebbinghaus forgetting curve to intelligently schedule review sessions for your learning materials. It offers a vast library of pre-made study decks and tools to create your own, facilitating long-term memory retention for exams and knowledge acquisition.

**Highlights:** Spaced repetition review engine, Extensive library of study decks, Customizable flashcard creation, Practice quizzes and tests, Collaborative learning features, Cross-device cloud synchronization, Content sharing and monetization

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6个记乎币 | $0.99 | one-time |
| 10记乎币 | $0.99 | one-time |
| 18记乎币 | $2.99 | one-time |
| 记乎月度会员 | $2.99 | one-time |
| 20记乎币 | $2.99 | one-time |
| 记乎季度会员 | $3.99 | one-time |
| 28记乎币 | $3.99 | one-time |
| 季度会员 | $4.99 | one-time |
| 40记乎币 | $5.99 | one-time |
| 记乎年度会员 | $9.99 | one-time |


### AI背书匠

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

This AI-powered tool enhances memory retention and learning efficiency through multi-sensory techniques and intelligent review systems. It helps users create structured knowledge frameworks and practice recall with features like AI-generated fill-in-the-blanks and supervised recitation.

**Highlights:** AI-powered content segmentation, AI-generated summaries and fill-in-the-blanks, Supervised recitation with error tracking, Intelligent question generation, Multi-sensory learning modes (audio, visual), Closed-loop learning process

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo 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 记乎 free?

记乎 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, 记乎 or AI背书匠?

记乎 is rated higher. 记乎 averages 4.2 out of 5 from 35 ratings, while AI背书匠 averages 4.2 from 16 ratings.

### Do 记乎 or AI背书匠 have ads?

Neither 记乎 nor AI背书匠 shows ads.

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

记乎 ships an update every 2 days, and AI背书匠 weekly. Most recently, 记乎 was updated on November 6, 2026 and AI背书匠 on November 8, 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.*