# VanLang Uni vs TDTU

The clearest difference is iOS requirement: VanLang Uni at 9.0 against TDTU's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VanLang Uni ships an update every 11 days, TDTU weekly. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | VanLang Uni | TDTU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Size | 41 MB | 37 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NUMBER ONE MEDIA TECHNOLOGY CORPORATION](https://appshunter.io/developer/1111747806) | [Ton Duc Thang University](https://appshunter.io/developer/1851898145) |

## What reviewers say

### VanLang Uni

[App page](https://appshunter.io/ios/app/vanlang-uni/id1475199285)

**Features:** macOS Compatibility

**In-app purchases:** none


### TDTU

[App page](https://appshunter.io/ios/app/tdtu/id6475383139)

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

**In-app purchases:** none


## Frequently asked questions

### Is VanLang Uni free?

VanLang Uni is free to download, with no in-app purchases.

### Is TDTU free?

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

### Do VanLang Uni or TDTU have ads?

Neither VanLang Uni nor TDTU shows ads.

### Which is updated more often, VanLang Uni or TDTU?

VanLang Uni ships an update every 11 days, and TDTU weekly. Most recently, VanLang Uni was updated on October 10, 2026 and TDTU on October 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.*