# 3M Scan vs Opti Tracking

The clearest difference is iOS requirement: Opti Tracking at 12.0 against 3M Scan's 15.0. 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.

3M Scan ships an update every 2 weeks, Opti Tracking every 11 days. The most recent releases landed on August 21, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 3M Scan | Opti Tracking |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Size | 36 MB | 45 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [The Coder](https://appshunter.io/developer/1205397694) | [Mohammed Abdullah](https://appshunter.io/developer/1615041237) |

## What reviewers say

### 3M Scan

[App page](https://appshunter.io/ios/app/3m-scan/id1477463491)

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

**In-app purchases:** none


### Opti Tracking

[App page](https://appshunter.io/ios/app/opti-tracking/id6470218128)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3M Scan free?

3M Scan is free to download, with no in-app purchases.

### Is Opti Tracking free?

Opti Tracking is free to download, with no in-app purchases.

### Do 3M Scan or Opti Tracking have ads?

Neither 3M Scan nor Opti Tracking shows ads.

### Which is updated more often, 3M Scan or Opti Tracking?

3M Scan ships an update every 2 weeks, and Opti Tracking every 11 days. Most recently, 3M Scan was updated on August 21, 2026 and Opti Tracking 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.*