# Serey Khmer vs Chakra STEM

Serey Khmer and Chakra STEM are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Serey Khmer | Chakra STEM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 48 MB | 57 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Serey Platform LTD](https://appshunter.io/developer/1436165530) | [Ministry of Environment Cambodia](https://appshunter.io/developer/1727580743) |

## What reviewers say

### Serey Khmer

[App page](https://appshunter.io/ios/app/serey-khmer/id1506728769)

**In-app purchases:** none


### Chakra STEM

[App page](https://appshunter.io/ios/app/chakra-stem/id6504170842)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Serey Khmer free?

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

### Is Chakra STEM free?

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

### Do Serey Khmer or Chakra STEM have ads?

Neither Serey Khmer nor Chakra STEM shows ads.

### Which is updated more often, Serey Khmer or Chakra STEM?

Serey Khmer ships an update monthly, and Chakra STEM monthly. Most recently, Serey Khmer was updated on October 17, 2026 and Chakra STEM on October 14, 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.*