# Khmer Physic Formulas vs Duraseksa

The clearest difference is ads: Duraseksa at none against Khmer Physic Formulas's shown. Duraseksa also leads on update cadence (every 2 weeks vs every 19 months). On price, in-app purchases, device support and iOS requirement 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 Formulas ships an update every 19 months, Duraseksa every 2 weeks. The most recent releases landed on September 21, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Khmer Physic Formulas | Duraseksa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (15 ratings)](https://appshunter.io/ios/app/khmer-physic-formulas/id1076144702/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 62 MB | 68 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheab Kunthea](https://appshunter.io/developer/1073035288) | [Vathana Sann](https://appshunter.io/developer/1634140022) |

## What reviewers say

### Khmer Physic Formulas

[App page](https://appshunter.io/ios/app/khmer-physic-formulas/id1076144702)

Access a comprehensive collection of physics formulas for various grade levels and specialized fields. This app offers a simple, fast, and smooth user interface for easy formula lookup.

**Highlights:** Physics formulas for grades 7-12, Engineering physics formulas, Basic physics formulas, SI Units and constants, Formula symbol reference, Simple and fast UI

**Features:** macOS Compatibility

**In-app purchases:** none


### Duraseksa

[App page](https://appshunter.io/ios/app/duraseksa/id1634140020)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Khmer Physic Formulas free?

Khmer Physic Formulas is free to download, with no in-app purchases.

### Is Duraseksa free?

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

### Do Khmer Physic Formulas or Duraseksa have ads?

Khmer Physic Formulas shows ads; Duraseksa does not.

### Which is updated more often, Khmer Physic Formulas or Duraseksa?

Khmer Physic Formulas ships an update every 19 months, and Duraseksa every 2 weeks. Most recently, Khmer Physic Formulas was updated on September 21, 2026 and Duraseksa on June 10, 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.*