# OMR Sheet Scanner vs Euclid Lab

The clearest difference is in-app purchases: Euclid Lab at none against OMR Sheet Scanner's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OMR Sheet Scanner sells 2 in-app purchases, starting at $4.99 per month. Euclid Lab asks for nothing beyond the download.

OMR Sheet Scanner ships an update every 4 days, Euclid Lab every 3 days. Both last shipped on September 10, 2026.

## The numbers

| Metric | OMR Sheet Scanner | Euclid Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 9 MB | 14 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [LUTFULLAH SAFDARI](https://appshunter.io/developer/1884226234) | [Yung-Hsin Shieh](https://appshunter.io/developer/6794223212) |

## What reviewers say

### OMR Sheet Scanner

[App page](https://appshunter.io/ios/app/omr-sheet-scanner/id6760403475)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OMR Grader Premium | $4.99 | per month |
| OMR Grader Premium | $44.99 | per year |


### Euclid Lab

[App page](https://appshunter.io/ios/app/euclid-lab/id6801162141)

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OMR Sheet Scanner free?

OMR Sheet Scanner is free to download, with in-app purchases available.

### Is Euclid Lab free?

Euclid Lab is free to download, with no in-app purchases.

### Do OMR Sheet Scanner or Euclid Lab have ads?

Neither OMR Sheet Scanner nor Euclid Lab shows ads.

### Which is updated more often, OMR Sheet Scanner or Euclid Lab?

OMR Sheet Scanner ships an update every 4 days, and Euclid Lab every 3 days. Most recently, OMR Sheet Scanner was updated on September 10, 2026 and Euclid Lab on September 10, 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.*