# EIT vs OpenDurian

The clearest difference is in-app purchases: EIT at none against OpenDurian's 10. EIT also leads on iOS requirement (13 vs 15.0). OpenDurian's advantage is update cadence (every 4 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. OpenDurian sells 10 one-off in-app purchases. EIT asks for nothing beyond the download.

EIT ships an update monthly, OpenDurian every 4 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | EIT | OpenDurian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eit/id6670527103/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | — |
| Size | 207 MB | 95 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Jamorn Anantariyakul](https://appshunter.io/developer/1481815522) | [OpenDurian](https://appshunter.io/developer/919058398) |

## What reviewers say

### EIT

[App page](https://appshunter.io/ios/app/eit/id6670527103)

This application provides information and resources related to the Engineering Institute of Thailand under H.M. The King's Patronage. It serves as a digital platform for members and interested individuals to access relevant content and updates.

**Highlights:** Information access, Resource hub, Member updates, Digital platform

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenDurian

[App page](https://appshunter.io/ios/app/opendurian/id6748681576)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Book Expo  Conver พูดมันส์ | $3.99 | one-time |
| Book Expo  Conver พูดมันส์ 1 | $3.99 | one-time |
| Book Expo  Converพูดมันส์ | $3.99 | one-time |
| Book Expo  ปีศาจตัวนั้น 2 | $4.99 | one-time |
| Book Expo  IELTS CheatSheet | $4.99 | one-time |
| Book Expo  หนังสือ 500 Vocab | $5.99 | one-time |
| Book Expo  500 Vocab Grab & G | $5.99 | one-time |
| Book Expo  สมุดจำจีน HSK5 | $9.99 | one-time |
| Book Expo  สมุดจำจีน HSK4 | $11.99 | one-time |
| Book Expo  SET สมุดจำจีน Box | $22.99 | one-time |


## Frequently asked questions

### Is EIT free?

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

### Is OpenDurian free?

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

### Do EIT or OpenDurian have ads?

Neither EIT nor OpenDurian shows ads.

### Which is updated more often, EIT or OpenDurian?

EIT ships an update monthly, and OpenDurian every 4 days. Most recently, EIT was updated on October 27, 2026 and OpenDurian on October 28, 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.*