# FF RASTREAMENTO vs Polygon

The clearest difference is in-app purchases: FF RASTREAMENTO at none against Polygon's 4. FF RASTREAMENTO also leads on iOS requirement (13.0 vs 17.0). Polygon's advantage is device support. On price there is nothing between them.

Both are free to download. Polygon sells 4 in-app purchases, starting at $2.99 per month. FF RASTREAMENTO asks for nothing beyond the download.

## The numbers

| Metric | FF RASTREAMENTO | Polygon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/polygon-inertia-centroid/id6469235285/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Weekly |
| Monetization | — | Freemium |
| Size | 228 MB | 29 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [aguinaldo sousa de moraes](https://appshunter.io/developer/1691235325) | [Adrian Caballero](https://appshunter.io/developer/1635287590) |

## What reviewers say

### FF RASTREAMENTO

[App page](https://appshunter.io/ios/app/ff-rastreamento/id6468650177)

**In-app purchases:** none


### Polygon

[App page](https://appshunter.io/ios/app/polygon-inertia-centroid/id6469235285)

Calculate complex properties of any polygonal figure, including centroids, moments of inertia, and perimeter. Simply input vertex coordinates for instant results, saving significant time on tedious calculations.

**Highlights:** Polygon Centroids, Moments of Inertia (Ix, Iy, Ixy), Polar Moment of Inertia, Radius of Gyration, Principal Moments of Inertia, Area and Perimeter, Side Lengths, Hollow Sections

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $2.99 | per month |
| Pro Access | $4.99 | per 6 months |
| Pro Access | $6.99 | per year |
| Pro Access | $9.99 | one-time |


## Frequently asked questions

### Is FF RASTREAMENTO free?

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

### Is Polygon free?

Polygon is free to download, with in-app purchases available.

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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.*