# Grade 12 vs Mekong Science

The clearest difference is ads: Mekong Science at none against Grade 12's shown. Mekong Science also leads on update cadence (every 2 months vs every 9 months). Grade 12's advantage is iOS requirement (13.0 vs 16.4). On price, 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.

Grade 12 ships an update every 9 months, Mekong Science every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Grade 12 | Mekong Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/grade-12/id1180095032/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 128 MB | 56 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cheab Kunthea](https://appshunter.io/developer/1073035288) | [Ya Visal Yin](https://appshunter.io/developer/1777728432) |

## What reviewers say

### Grade 12

[App page](https://appshunter.io/ios/app/grade-12/id1180095032)

This app provides comprehensive learning resources for Grade 12 students in Cambodia. It includes lessons, Q&A sections, formulas, and exercises across various subjects like Math, Physics, Chemistry, and Biology. The goal is to make studying more efficient and effective.

**Highlights:** Subject lessons, Question and answer sections, Subject formulas, Practice exercises, Grade 12 curriculum support

**Features:** macOS Compatibility

**In-app purchases:** none


### Mekong Science

[App page](https://appshunter.io/ios/app/mekong-science/id6737747582)

**In-app purchases:** none


## Frequently asked questions

### Is Grade 12 free?

Grade 12 is free to download, with no in-app purchases.

### Is Mekong Science free?

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

### Do Grade 12 or Mekong Science have ads?

Grade 12 shows ads; Mekong Science does not.

### Which is updated more often, Grade 12 or Mekong Science?

Grade 12 ships an update every 9 months, and Mekong Science every 2 months. Most recently, Grade 12 was updated on October 24, 2026 and Mekong Science on October 25, 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.*