# Khmer Math Formulas vs SIS MoEYS

The clearest difference is ads: SIS MoEYS at none against Khmer Math Formulas's shown. SIS MoEYS also leads on update cadence (every 2 weeks vs every 17 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 Math Formulas ships an update every 17 months, SIS MoEYS every 2 weeks. The most recent releases landed on June 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Khmer Math Formulas | SIS MoEYS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/khmer-math-formulas/id1073035289/reviews)** | — |
| Number of ratings | **6** | — |
| 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 | — |
| Size | 39 MB | 24 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheab Kunthea](https://appshunter.io/developer/1073035288) | [Metfone](https://appshunter.io/developer/961045207) |

## 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


### SIS MoEYS

[App page](https://appshunter.io/ios/app/sis-moeys/id6498872963)

**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 SIS MoEYS free?

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

### Do Khmer Math Formulas or SIS MoEYS have ads?

Khmer Math Formulas shows ads; SIS MoEYS does not.

### Which is updated more often, Khmer Math Formulas or SIS MoEYS?

Khmer Math Formulas ships an update every 17 months, and SIS MoEYS every 2 weeks. Most recently, Khmer Math Formulas was updated on June 10, 2026 and SIS MoEYS on September 15, 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.*