# 知到. vs C Compiler IDE

The clearest difference is review sentiment: C Compiler IDE at 71% against 知到.'s 20%. C Compiler IDE also leads on rating (3.0 vs 1.2). 知到.'s advantage is monetization model (free vs free with in-app purchases) and ratings volume (320 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 知到. sells 11 in-app purchases, starting at $1.99 per month and C Compiler IDE sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

C Compiler IDE holds the better App Store score, 3.0 against 1.2. That said, the two scores are not equally well evidenced: 知到. has 320 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 20% of 知到.'s written reviews are positive against 71% of C Compiler IDE's.

知到. ships an update every 3 weeks, C Compiler IDE every 2 weeks. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | 知到. | C Compiler IDE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (320 ratings)](https://appshunter.io/ios/app/id1255358463/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/c-compiler-ide/id6740301413/reviews)** |
| Number of ratings | **320** | 1 |
| Positive reviews | 19.6% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 393 MB | 360 MB |
| Requires iOS | **14.0** | 15.0 |
| 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) | [长沙春觉信息科技有限公司](https://appshunter.io/developer/1692530882) |

## 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


### C Compiler IDE

[App page](https://appshunter.io/ios/app/c-compiler-ide/id6740301413)

This tool provides a comprehensive environment for writing, compiling, and running C language code. It features project management, code highlighting, and debugging tools, along with numerous C language examples to aid beginners. Users can also customize the interface with multiple skins and modes.

**Highlights:** One-click C code compilation, Structured project management, Code highlighting and prompts, Extensive C language examples, Multi-skin support and dark mode

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一月VIP会员 | $0.99 | one-time |
| 三月VIP会员 | $1.99 | one-time |
| 一年VIP会员 | $2.99 | one-time |
| 长期VIP会员 | $3.99 | one-time |
| 两年VIP会员 | $3.99 | one-time |


## Frequently asked questions

### Is 知到. free?

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

### Is C Compiler IDE free?

C Compiler IDE is free to download, with in-app purchases available.

### Which has better reviews, 知到. or C Compiler IDE?

C Compiler IDE is rated higher. 知到. averages 1.2 out of 5 from 320 ratings, while C Compiler IDE averages 3.0 from 1 ratings.

### Do 知到. or C Compiler IDE have ads?

Neither 知到. nor C Compiler IDE shows ads.

### Which is updated more often, 知到. or C Compiler IDE?

知到. ships an update every 3 weeks, and C Compiler IDE every 2 weeks. Most recently, 知到. was updated on September 23, 2026 and C Compiler IDE on September 27, 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.*