# Onluyen vs PTIT S

The clearest difference is in-app purchases: PTIT S at none against Onluyen's 5. Onluyen's advantage is ratings volume (228 vs 38). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Onluyen sells 5 in-app purchases, starting at $4.49 per month. PTIT S asks for nothing beyond the download.

Onluyen holds the better App Store score, 2.9 against 2.7. That said, the two scores are not equally well evidenced: Onluyen has 228 ratings behind it against 38, so its average is the more settled of the two. Written reviews complicate that: 19% of Onluyen's written reviews are positive against 26% of PTIT S's, so the app with the better star average is not the one people write more warmly about.

Onluyen ships an update every 11 days, PTIT S every 9 days. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Onluyen | PTIT S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (228 ratings)](https://appshunter.io/ios/app/onluyen/id1506873010/reviews)** | [2.7 (38 ratings)](https://appshunter.io/ios/app/ptit-s-link/id1545808013/reviews) |
| Number of ratings | **228** | 38 |
| Positive reviews | 18.6% of reviews | **25.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 58 MB | 67 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [EDMICRO EDUCATION COMPANY LIMITED](https://appshunter.io/developer/1506873009) | [AISoft](https://appshunter.io/developer/1534825275) |

## What reviewers say

### Onluyen

[App page](https://appshunter.io/ios/app/onluyen/id1506873010)

This app offers personalized practice and testing for Vietnamese high school students across all subjects. It features a vast question bank, video explanations, and progress tracking to aid in exam preparation and academic improvement.

**Highlights:** Personalized practice by knowledge unit, Over 120,000 questions with detailed solutions, Video lectures and explanations for questions, Practice tests for 45-minute, semester, and national exams, Thousands of randomly generated and curated tests, Progress tracking and detailed performance reports, Bookmark difficult questions and ask for help

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onluyen - 30 days | $4.49 | per month |
| Onluyen 1 month | $4.99 | per month |
| Onluyen - 6 month | $21.99 | per 6 months |
| Onluyen - 1 year | $39.99 | per year |
| Onluyen 1 năm | $59.99 | per year |


### PTIT S

[App page](https://appshunter.io/ios/app/ptit-s-link/id1545808013)

This application provides essential functions for students, lecturers, and administrative staff to support the digital transformation efforts of an academic institution. It aims to enhance training and research quality through streamlined operations.

**Highlights:** Digital transformation support, Enhanced training quality, Improved research quality, Essential functions for users, Streamlined operations

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

**In-app purchases:** none


## Frequently asked questions

### Is Onluyen free?

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

### Is PTIT S free?

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

### Which has better reviews, Onluyen or PTIT S?

Onluyen is rated higher. Onluyen averages 2.9 out of 5 from 228 ratings, while PTIT S averages 2.7 from 38 ratings.

### Do Onluyen or PTIT S have ads?

Neither Onluyen nor PTIT S shows ads.

### Which is updated more often, Onluyen or PTIT S?

Onluyen ships an update every 11 days, and PTIT S every 9 days. Most recently, Onluyen was updated on October 18, 2026 and PTIT S on October 19, 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.*