# Khmer Math 12 vs SIS Mobie

The clearest difference is update cadence: SIS Mobie at every 10 days against Khmer Math 12's monthly. SIS Mobie also leads on iOS requirement (10.0 vs 15.0). On price, ads, 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 12 ships an update monthly, SIS Mobie every 10 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Khmer Math 12 | SIS Mobie |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 63 MB | 18 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Puthea Khem](https://appshunter.io/developer/1471748857) | [Pyramid Software and Consulting Company Limited](https://appshunter.io/developer/885416042) |

## What reviewers say

### Khmer Math 12

[App page](https://appshunter.io/ios/app/khmer-math-12/id1471748858)

**Features:** Vision Pro support

**In-app purchases:** none


### SIS Mobie

[App page](https://appshunter.io/ios/app/sis-mobie/id1509426167)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Khmer Math 12 free?

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

### Is SIS Mobie free?

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

### Do Khmer Math 12 or SIS Mobie have ads?

Neither Khmer Math 12 nor SIS Mobie shows ads.

### Which is updated more often, Khmer Math 12 or SIS Mobie?

Khmer Math 12 ships an update monthly, and SIS Mobie every 10 days. Most recently, Khmer Math 12 was updated on October 29, 2026 and SIS Mobie 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.*