# Polygon vs Trackingcom GPS

The clearest difference is in-app purchases: Trackingcom GPS at none against Polygon's 4. Trackingcom GPS also leads on iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | Polygon | Trackingcom GPS |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Freemium | — |
| Size | 29 MB | 47 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Adrian Caballero](https://appshunter.io/developer/1635287590) | [Global Open Data SAC](https://appshunter.io/developer/1652814827) |

## What reviewers say

### 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 |


### Trackingcom GPS

[App page](https://appshunter.io/ios/app/trackingcom-gps/id6473137719)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polygon free?

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

### Is Trackingcom GPS free?

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

### Do Polygon or Trackingcom GPS have ads?

Neither Polygon nor Trackingcom GPS shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*