# 知到. vs 爱发福

The clearest difference is rating: 爱发福 at 5.0 against 知到.'s 1.2. 爱发福 also leads on in-app purchases (none vs 11). 知到.'s advantage is ratings volume (323 vs 2) and update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 知到. sells 11 in-app purchases, starting at $1.99 per month. 爱发福 asks for nothing beyond the download.

爱发福 holds the better App Store score, 5.0 against 1.2. That said, the two scores are not equally well evidenced: 知到. has 323 ratings behind it against 2, so its average is the more settled of the two.

知到. ships an update every 3 weeks, 爱发福 every 3 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | 知到. | 爱发福 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (323 ratings)](https://appshunter.io/ios/app/id1255358463/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1476957430/reviews)** |
| Number of ratings | **323** | 2 |
| Positive reviews | 18.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 393 MB | 7 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [上海卓越睿新数码科技有限公司](https://appshunter.io/developer/702650874) | [兆祥 李](https://appshunter.io/developer/1473079429) |

## What reviewers say

### 知到.

[App page](https://appshunter.io/ios/app/id1255358463)

Access a vast library of high-quality courses from over 2,000 universities worldwide. This platform aims to share educational resources and help users improve themselves with daily lessons from experts.

**Highlights:** Extensive course library, University-level content, Expert instructors, Daily learning sessions, Personal development focus

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 知到VIP会员 | $1.99 | per month |
| 6课程商品 | $0.99 | one-time |
| 知到VIP会员(新特惠价1) | $0.99 | one-time |
| 18课程商品 | $2.99 | one-time |
| 30课程商品 | $3.99 | one-time |
| 50课程商品 | $6.99 | one-time |
| 68课程商品 | $9.99 | one-time |
| 智慧树VIP会员(年卡学生价) | $24.99 | one-time |
| 198课程商品 | $29.99 | one-time |
| 知到VIP会员 | $29.99 | one-time |
| 588课程商品 | $79.99 | one-time |

**What reviewers like**

- 👍 Provides access to learning resources
- 👍 Offers a platform for academic exchange
- 👍 Free to download and access content
- 👍 Useful for supplementary learning
- 👍 Good for utilizing spare time for learning

**What reviewers complain about**

- 👎 Forced updates
- 👎 Poor server performance
- 👎 Frequent crashes and freezes
- 👎 Bad user interface and experience
- 👎 Inconvenient login and verification process

**Reported bugs**

- App crashes frequently
- App freezes or becomes unresponsive
- Video playback issues (no sound, auto-pause, content not counting)
- Login and verification process is problematic
- Exams end prematurely

**Requested features**

- Develop an iPad/tablet version
- Improve server stability and performance
- Offer a delayed update option
- Allow users to choose whether to rate courses
- Implement a proper rating system for courses


### 爱发福

[App page](https://appshunter.io/ios/app/id1476957430)

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

**In-app purchases:** none


## Frequently asked questions

### Is 知到. free?

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

### Is 爱发福 free?

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

### Which has better reviews, 知到. or 爱发福?

爱发福 is rated higher. 知到. averages 1.2 out of 5 from 323 ratings, while 爱发福 averages 5.0 from 2 ratings.

### Do 知到. or 爱发福 have ads?

Neither 知到. nor 爱发福 shows ads.

### Which is updated more often, 知到. or 爱发福?

知到. ships an update every 3 weeks, and 爱发福 every 3 months. Most recently, 知到. was updated on October 29, 2026 and 爱发福 on October 29, 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.*