# PTIT S vs Green Edu

The clearest difference is update cadence: PTIT S at every 8 days against Green Edu's every 2 months. Green Edu's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

PTIT S ships an update every 8 days, Green Edu every 2 months. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | PTIT S | Green Edu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (36 ratings)](https://appshunter.io/ios/app/ptit-s-link/id1545808013/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 25.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free | — |
| Size | 66 MB | 21 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [AISoft](https://appshunter.io/developer/1534825275) | [Hung Doanh Nguyen](https://appshunter.io/developer/1493410241) |

## What reviewers say

### 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


### Green Edu

[App page](https://appshunter.io/ios/app/green-edu/id6748214775)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PTIT S free?

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

### Is Green Edu free?

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

### Do PTIT S or Green Edu have ads?

Neither PTIT S nor Green Edu shows ads.

### Which is updated more often, PTIT S or Green Edu?

PTIT S ships an update every 8 days, and Green Edu every 2 months. Most recently, PTIT S was updated on September 19, 2026 and Green Edu on September 8, 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.*