# 51CTO vs SpeechPolish

The clearest difference is update cadence: 51CTO at fortnightly against SpeechPolish's every 3 months. 51CTO also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 51CTO sells 10 one-off in-app purchases and SpeechPolish sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

51CTO ships an update fortnightly, SpeechPolish every 3 months. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 51CTO | SpeechPolish |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 41.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 123 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| 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) | [炜腾 张](https://appshunter.io/developer/1749544018) |

## 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1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 |
| 40金币 | $5.99 | one-time |
| 50金币 | $6.99 | one-time |
| 60金币 | $8.99 | one-time |
| 98金币 | $14.99 | one-time |
| 298金币 | $39.99 | one-time |
| 488金币 | $69.99 | one-time |


### SpeechPolish

[App page](https://appshunter.io/ios/app/speechpolish/id6778291877)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpeechPolish Pro Monthly | $5.99 | per month |
| SpeechPolish Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is 51CTO free?

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

### Is SpeechPolish free?

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

### Do 51CTO or SpeechPolish have ads?

Neither 51CTO nor SpeechPolish shows ads.

### Which is updated more often, 51CTO or SpeechPolish?

51CTO ships an update fortnightly, and SpeechPolish every 3 months. Most recently, 51CTO was updated on November 6, 2026 and SpeechPolish on October 31, 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.*