# TDTU vs Aptis Trainer

The clearest difference is in-app purchases: TDTU at none against Aptis Trainer's 5. TDTU also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Aptis Trainer sells 5 one-off in-app purchases. TDTU asks for nothing beyond the download.

TDTU ships an update weekly, Aptis Trainer every 9 days. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | TDTU | Aptis Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/aptis-trainer/id6756222548/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 106 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ton Duc Thang University](https://appshunter.io/developer/1851898145) | [Phuc Nguyen](https://appshunter.io/developer/1859315106) |

## What reviewers say

### TDTU

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

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

**In-app purchases:** none


### Aptis Trainer

[App page](https://appshunter.io/ios/app/aptis-trainer/id6756222548)

Prepare for the Aptis exam with a comprehensive app covering all sections: Grammar, Vocabulary, Listening, Reading, Speaking, and Writing. Features include mock tests, AI-powered explanations and grading, a built-in dictionary, and progress tracking to help you master the exam.

**Highlights:** Covers all 6 Aptis exam sections, Authentic exam structure simulation, Mock Test mode with time pressure, AI-powered Reading & Listening explanations, AI grading for Writing & Speaking, Built-in dictionary and vocabulary saving, Daily learning goals and progress tracking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40 AI Grading Credits | $1.99 | one-time |
| Gói Premium Vĩnh viễn | $2.99 | one-time |
| Full Access 1 Month | $5.99 | one-time |
| Full Access 2 Months | $9.99 | one-time |
| Full Access 6 Months | $24.99 | one-time |


## Frequently asked questions

### Is TDTU free?

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

### Is Aptis Trainer free?

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

### Do TDTU or Aptis Trainer have ads?

Aptis Trainer shows ads; TDTU does not.

### Which is updated more often, TDTU or Aptis Trainer?

TDTU ships an update weekly, and Aptis Trainer every 9 days. Most recently, TDTU was updated on October 16, 2026 and Aptis Trainer on October 20, 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.*