# Optical Toolkit vs EngineerTact

The clearest difference is iOS requirement: EngineerTact at 15.1 against Optical Toolkit's 17.0. 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.

## The numbers

| Metric | Optical Toolkit | EngineerTact |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 3 MB | 27 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sanjay Yadav](https://appshunter.io/developer/1507771486) | [Fırat BOZKAYA](https://appshunter.io/developer/1875535506) |

## What reviewers say

### Optical Toolkit

[App page](https://appshunter.io/ios/app/optical-toolkit/id6761304395)

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

**In-app purchases:** none


### EngineerTact

[App page](https://appshunter.io/ios/app/engineertact-geo-and-rf/id6772441208)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optical Toolkit free?

Optical Toolkit is free to download, with no in-app purchases.

### Is EngineerTact free?

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

### Do Optical Toolkit or EngineerTact have ads?

Neither Optical Toolkit nor EngineerTact shows ads.

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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.*