# Khmer Physic Exercises vs Mekong Science

The clearest difference is ads: Mekong Science at none against Khmer Physic Exercises's shown. Mekong Science also leads on update cadence (every 2 months vs every 33 months). Khmer Physic Exercises's advantage is iOS requirement (11.0 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.

Khmer Physic Exercises ships an update every 33 months, Mekong Science every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Khmer Physic Exercises | Mekong Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/khmer-physic-exercises/id1083754942/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 33 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 61 MB | 56 MB |
| Requires iOS | **11.0** | 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

### Khmer Physic Exercises

[App page](https://appshunter.io/ios/app/khmer-physic-exercises/id1083754942)

This app offers physics exercises for grades 11 and 12, including outstanding paper exams and topics like mechanics and thermodynamics. It features a simple and fast user interface for a smooth learning experience.

**Highlights:** Grade 11 physics exercises, Grade 12 physics exercises, Outstanding paper exams, Mechanics topics, Thermodynamics topics, Simple UI, Fast performance

**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 Khmer Physic Exercises free?

Khmer Physic Exercises 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 Khmer Physic Exercises or Mekong Science have ads?

Khmer Physic Exercises shows ads; Mekong Science does not.

### Which is updated more often, Khmer Physic Exercises or Mekong Science?

Khmer Physic Exercises ships an update every 33 months, and Mekong Science every 2 months. Most recently, Khmer Physic Exercises 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.*