# 51CTO vs 博学谷

The clearest difference is in-app purchases: 博学谷 at none against 51CTO's 23. 51CTO's advantage is update cadence (fortnightly vs every 5 weeks). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. 51CTO sells 23 one-off in-app purchases. 博学谷 asks for nothing beyond the download.

51CTO ships an update fortnightly, 博学谷 every 5 weeks. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 51CTO | 博学谷 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/it/id1241182369/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 41.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 123 MB | 185 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [北京无忧创想信息技术有限公司](https://appshunter.io/developer/525383066) | [Jiangsu Chuanzhiboke Education Technology Co.,ltd.](https://appshunter.io/developer/1241182368) |

## What reviewers say

### 51CTO

[App page](https://appshunter.io/ios/app/51cto/id1038062672)

This platform offers a vast library of free, practical video courses for IT professionals and students. Learn programming, certifications, AI, and more from industry experts to advance your career.

**Highlights:** 80,000+ free practical video courses, Covers 22 IT categories, Taught by 800+ industry experts, Focus on practical skills and career advancement, Suitable for students to experienced IT professionals, Offline learning support

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1金币 | $0.99 | one-time |
| 6金币 | $0.99 | one-time |
| 3金币 | $0.99 | one-time |
| 12金币 | $1.99 | one-time |
| 18金币 | $2.99 | one-time |
| 30金币 | $3.99 | one-time |
| 25金币 | $3.99 | one-time |
| 40金币 | $5.99 | one-time |
| 45金币 | $5.99 | one-time |
| 50金币 | $6.99 | one-time |
| 93金币 | $12.99 | one-time |
| 88金币 | $12.99 | one-time |
| 98金币 | $14.99 | one-time |
| 138金币 | $19.99 | one-time |
| 158金币 | $22.99 | one-time |
| 178金币 | $24.99 | one-time |
| 208金币 | $29.99 | one-time |
| 248金币 | $34.99 | one-time |
| 298金币 | $39.99 | one-time |
| 348金币 | $49.99 | one-time |
| 448金币 | $59.99 | one-time |
| 488金币 | $69.99 | one-time |
| 998金币 | $149.99 | one-time |


### 博学谷

[App page](https://appshunter.io/ios/app/it/id1241182369)

This platform offers online IT courses and training, leveraging a decade of offline teaching experience. It provides a comprehensive educational ecosystem with top instructors and optimized course content for various IT fields.

**Highlights:** Online IT courses, Top instructor-led classes, Optimized course content, Diverse IT specializations, Educational ecosystem, Career development focus

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 51CTO free?

51CTO is free to download, with in-app purchases available.

### Is 博学谷 free?

博学谷 is free to download, with no in-app purchases.

### Do 51CTO or 博学谷 have ads?

Neither 51CTO nor 博学谷 shows ads.

### Which is updated more often, 51CTO or 博学谷?

51CTO ships an update fortnightly, and 博学谷 every 5 weeks. Most recently, 51CTO was updated on September 23, 2026 and 博学谷 on September 18, 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.*