# 51Talk练口语 vs 智力星空

The clearest difference is in-app purchases: 51Talk练口语 at none against 智力星空's 6. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 智力星空 sells 6 one-off in-app purchases. 51Talk练口语 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 weeks. The most recent releases landed on September 14, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | 51Talk练口语 | 智力星空 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6502636456/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 156 MB | 52 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [shenzhen Xingnuo Chaohui Technology Co., Ltd.](https://appshunter.io/developer/1741291548) | [Tech4Joy](https://appshunter.io/developer/1746280147) |

## What reviewers say

### 51Talk练口语

[App page](https://appshunter.io/ios/app/51talk/id6478766651)

**Features:** macOS Compatibility

**In-app purchases:** none


### 智力星空

[App page](https://appshunter.io/ios/app/id6502636456)

This platform offers scientific and engaging brain training for adolescents, focusing on improving concentration, memory, and logical thinking. It combines cognitive neuroscience with fun, space-themed adventures to address common parental concerns about learning difficulties and development.

**Highlights:** Adolescent potential assessment center, Pilot-level concentration training, Printable paper-screen synchronized practice books, All-brain potential activation hall, Logical and programming thinking training, Weekly brain quotient reports, Eye protection and anti-addiction controls

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7天会员 | $1.99 | one-time |
| 月会员 | $4.99 | one-time |
| 优惠年会员 | $24.99 | one-time |
| 特惠永久会员 | $29.99 | one-time |
| 年会员 | $29.99 | one-time |
| 永久会员 | $69.99 | one-time |


## Frequently asked questions

### Is 51Talk练口语 free?

51Talk练口语 is free to download, with no in-app purchases.

### Is 智力星空 free?

智力星空 is free to download, with in-app purchases available.

### Do 51Talk练口语 or 智力星空 have ads?

Neither 51Talk练口语 nor 智力星空 shows ads.

### Which is updated more often, 51Talk练口语 or 智力星空?

51Talk练口语 ships an update every 4 weeks, and 智力星空 every 4 weeks. Most recently, 51Talk练口语 was updated on September 14, 2026 and 智力星空 on August 16, 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.*