# Khmer Math Formulas vs Writing Explanation

The clearest difference is ads: Writing Explanation at none against Khmer Math Formulas's shown. Writing Explanation also leads on update cadence (every 2 weeks vs every 17 months) and monetization model (free vs ad-supported). Khmer Math Formulas's advantage is rating (4.3 vs 4.0). On price, ratings volume, 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 Math Formulas holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

Khmer Math Formulas ships an update every 17 months, Writing Explanation every 2 weeks. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Khmer Math Formulas | Writing Explanation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/khmer-math-formulas/id1073035289/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/writing-explanation/id1458615232/reviews) |
| Number of ratings | **6** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 39 MB | 77 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheab Kunthea](https://appshunter.io/developer/1073035288) | [Phanna PANG](https://appshunter.io/developer/1458265412) |

## What reviewers say

### Khmer Math Formulas

[App page](https://appshunter.io/ios/app/khmer-math-formulas/id1073035289)

Access a comprehensive collection of math formulas for grades 7-12, designed with a simple and user-friendly interface. This app serves as a valuable study assistant for students, making it easy to browse and find the formulas you need.

**Highlights:** Grade 7-12 math formulas, Simple user interface, Easy formula browsing, Study assistant, Useful materials

**Features:** macOS Compatibility

**In-app purchases:** none


### Writing Explanation

[App page](https://appshunter.io/ios/app/writing-explanation/id1458615232)

This educational app provides a collection of essays designed to help students prepare for the Bac II Examination. Its user-friendly interface makes it easy to access and navigate study materials.

**Highlights:** Bac II Examination essay collection, Friendly user interface, Easy to use, iOS compatible

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Khmer Math Formulas free?

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

### Is Writing Explanation free?

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

### Which has better reviews, Khmer Math Formulas or Writing Explanation?

Khmer Math Formulas is rated higher. Khmer Math Formulas averages 4.3 out of 5 from 6 ratings, while Writing Explanation averages 4.0 from 3 ratings.

### Do Khmer Math Formulas or Writing Explanation have ads?

Khmer Math Formulas shows ads; Writing Explanation does not.

### Which is updated more often, Khmer Math Formulas or Writing Explanation?

Khmer Math Formulas ships an update every 17 months, and Writing Explanation every 2 weeks. Most recently, Khmer Math Formulas was updated on October 17, 2026 and Writing Explanation on October 2, 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.*