# Flash Bac Maths vs OptiKit

The clearest difference is price: OptiKit at Free against Flash Bac Maths's $3.99. OptiKit also leads on device support. Flash Bac Maths's advantage is iOS requirement (16.4 vs 18.0). On in-app purchases there is nothing between them.

OptiKit is free to download; Flash Bac Maths costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Flash Bac Maths | OptiKit |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optikit/id6740053137/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 35 MB | 20 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hatem Maati](https://appshunter.io/developer/1182835931) | [Ronald Baks](https://appshunter.io/developer/1555952042) |

## What reviewers say

### Flash Bac Maths

[App page](https://appshunter.io/ios/app/flash-bac-maths/id6447762415)

**In-app purchases:** none


### OptiKit

[App page](https://appshunter.io/ios/app/optikit/id6740053137)

This app serves as a comprehensive toolkit for opticians and optometrists, simplifying daily tasks. It offers features for prescription transposition, refraction calculation, and visual display of lens and depth of field information, aiding both new and experienced professionals.

**Highlights:** Prescription transposition with step-by-step guidance, Interactive exercises with instant feedback, Lens visualization with graphs, Depth of field visualization, Reading power calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash Bac Maths free?

Flash Bac Maths costs $3.99, with no in-app purchases.

### Is OptiKit free?

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

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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.*