# Schoolx Teacher vs OLM Marker

The clearest difference is iOS requirement: OLM Marker at 13.5 against Schoolx Teacher's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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 every 3 weeks. Both last shipped on September 20, 2026.

## The numbers

| Metric | Schoolx Teacher | OLM Marker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 59 MB | 8 MB |
| Requires iOS | 15.5 | **13.5** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dinh Manh Thao](https://appshunter.io/developer/1505453676) | [Tho Ha Duc](https://appshunter.io/developer/1636633233) |

## What reviewers say

### Schoolx Teacher

[App page](https://appshunter.io/ios/app/schoolx-teacher/id1583917159)

**Features:** macOS Compatibility

**In-app purchases:** none


### OLM Marker

[App page](https://appshunter.io/ios/app/olm-marker/id1636633231)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Schoolx Teacher free?

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

### Is OLM Marker free?

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

### Do Schoolx Teacher or OLM Marker have ads?

Neither Schoolx Teacher nor OLM Marker shows ads.

### Which is updated more often, Schoolx Teacher or OLM Marker?

Schoolx Teacher ships an update every 3 weeks, and OLM Marker every 3 weeks. Most recently, Schoolx Teacher was updated on September 20, 2026 and OLM Marker on September 20, 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.*