# F.A.S.T vs Research Browser Pro

The clearest difference is price: F.A.S.T at Free against Research Browser Pro's $0.99. F.A.S.T also leads on iOS requirement (15.6 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

F.A.S.T is free to download; Research Browser Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | F.A.S.T | Research Browser Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (23 ratings)](https://appshunter.io/ios/app/fast/id1217030092/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | — |
| Monetization | Free | — |
| Size | 4 MB | 11 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Philippe Zay](https://appshunter.io/developer/1200498230) | [EyeOS Store Inc.](https://appshunter.io/developer/1036418634) |

## What reviewers say

### F.A.S.T

[App page](https://appshunter.io/ios/app/fast/id1217030092)

Create and customize mesmerizing mathematical spirals, including Archimedean and logarithmic forms. Offers intuitive controls for precise adjustments to curvature, color, and patterns. Ideal for creative discovery and educational exploration.

**Highlights:** Archimedean & Logarithmic Spirals, Intuitive Controls, Dynamic Colorization, Expert Mode, Dark Mode Support, Cross-device Compatibility

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

**In-app purchases:** none


### Research Browser Pro

[App page](https://appshunter.io/ios/app/research-browser-pro/id6761659469)

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

**In-app purchases:** none


## Frequently asked questions

### Is F.A.S.T free?

F.A.S.T is free to download, with no in-app purchases.

### Is Research Browser Pro free?

Research Browser Pro costs $0.99, with no in-app purchases.

### Do F.A.S.T or Research Browser Pro have ads?

Neither F.A.S.T nor Research Browser Pro 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.*