# 滑记 vs 氢刻

The clearest difference is monetization model: 氢刻 at free with in-app purchases against 滑记's subscription. 氢刻 also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 89%). 滑记's advantage is ratings volume (26 vs 5). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 滑记 sells 19 in-app purchases, starting at $4.99 per month and 氢刻 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

氢刻 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 滑记 has 26 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 89% of 滑记's written reviews are positive against 100% of 氢刻's.

滑记 ships an update fortnightly, 氢刻 every 3 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 滑记 | 氢刻 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (26 ratings)](https://appshunter.io/ios/app/anki/id1563391530/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ai/id1585104628/reviews)** |
| Number of ratings | **26** | 5 |
| Positive reviews | 89.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 112 MB | 22 MB |
| Requires iOS | **12.1** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Shuyi Education Technology Co., Ltd.](https://appshunter.io/developer/1563391532) | [QingKe Tech Co., Ltd.](https://appshunter.io/developer/1584950202) |

## What reviewers say

### 滑记

[App page](https://appshunter.io/ios/app/anki/id1563391530)

This app uses spaced repetition and AI to create personalized study plans, helping users memorize key information efficiently for exams. It consolidates study materials into a digital flashcard format, saving time and enhancing learning.

**Highlights:** AI-driven dynamic study plans, Spaced repetition learning theory, Personalized review scheduling, Consolidated digital flashcards, Focus on key exam points, Memory efficiency improvement

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

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 滑记月度会员-自动订阅 | $4.99 | per month |
| 滑记年度会员-自动订阅 | $14.99 | per year |
| 滑记年度会员-自动订阅 | $39.99 | per year |
| 6 虾滑 | $0.99 | one-time |
| 18 虾滑 | $2.99 | one-time |
| 滑记月度会员 | $4.99 | one-time |
| 68 虾滑 | $9.99 | one-time |
| 滑记 1 年会员 | $14.99 | one-time |
| 信仰会员 | $14.99 | one-time |
| 信仰会员 | $19.99 | one-time |
| 滑记1年会员 | $22.99 | one-time |
| 信仰会员 | $29.99 | one-time |
| 滑记年度会员 | $29.99 | one-time |
| 滑记 3 年会员 | $39.99 | one-time |
| 滑记终身会员 | $39.99 | one-time |
| 滑记3年会员 | $49.99 | one-time |
| 信仰会员 | $59.99 | one-time |
| 滑记 5 年会员 | $59.99 | one-time |
| 滑记5年会员 | $69.99 | one-time |


### 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 |


## Frequently asked questions

### Is 滑记 free?

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

### Is 氢刻 free?

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

### Which has better reviews, 滑记 or 氢刻?

氢刻 is rated higher. 滑记 averages 4.8 out of 5 from 26 ratings, while 氢刻 averages 5.0 from 5 ratings.

### Do 滑记 or 氢刻 have ads?

Neither 滑记 nor 氢刻 shows ads.

### Which is updated more often, 滑记 or 氢刻?

滑记 ships an update fortnightly, and 氢刻 every 3 weeks. Most recently, 滑记 was updated on September 23, 2026 and 氢刻 on September 22, 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.*