# TNUS Mobile vs 4Buddy

The clearest difference is in-app purchases: TNUS Mobile at none against 4Buddy's 8. 4Buddy's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 4Buddy sells 5 in-app purchases, starting at $11.99 per month. TNUS Mobile asks for nothing beyond the download.

TNUS Mobile ships an update every 3 weeks, 4Buddy every 6 days. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | TNUS Mobile | 4Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4buddy-learn-languages/id6786938841/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 85 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Thai Nguyen University of Sciences](https://appshunter.io/developer/1859494863) | [4ENGLISH TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1845875764) |

## What reviewers say

### TNUS Mobile

[App page](https://appshunter.io/ios/app/tnus-mobile/id6756244843)

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

**In-app purchases:** none


### 4Buddy

[App page](https://appshunter.io/ios/app/4buddy-learn-languages/id6786938841)

Practice speaking new languages with AI and connect with other learners. Get pronunciation feedback and personalized lessons to build confidence in real-life conversations. Track your progress and reinforce vocabulary with spaced repetition.

**Highlights:** AI conversation practice, Pronunciation feedback, Connect with learners, Personalized learning paths, Spaced repetition vocabulary review, Progress tracking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $11.99 | per month |
| 3 Months | $23.99 | per 3 months |
| 3 months | $23.99 | per 3 months |
| 1 Year | $31.99 | per year |
| 1 Year | $39.99 | per year |


## Frequently asked questions

### Is TNUS Mobile free?

TNUS Mobile is free to download, with no in-app purchases.

### Is 4Buddy free?

4Buddy is free to download, with in-app purchases available.

### Do TNUS Mobile or 4Buddy have ads?

Neither TNUS Mobile nor 4Buddy shows ads.

### Which is updated more often, TNUS Mobile or 4Buddy?

TNUS Mobile ships an update every 3 weeks, and 4Buddy every 6 days. Most recently, TNUS Mobile was updated on October 3, 2026 and 4Buddy on October 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.*