# GPS vs Pythagorus doodlus

The clearest difference is in-app purchases: GPS at none against Pythagorus doodlus's 1. GPS also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). Pythagorus doodlus's advantage is update cadence (every 6 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Pythagorus doodlus sells 1 in-app purchase, starting at $4.99 per year. GPS asks for nothing beyond the download.

GPS ships an update fortnightly, Pythagorus doodlus every 6 days. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | GPS | Pythagorus doodlus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 68 MB | 7 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [RedGPS](https://appshunter.io/developer/1188509477) | [Stéphan Barbé](https://appshunter.io/developer/313949257) |

## What reviewers say

### GPS

[App page](https://appshunter.io/ios/app/gps-tracker/id6470951219)

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

**In-app purchases:** none


### Pythagorus doodlus

[App page](https://appshunter.io/ios/app/pythagorus-doodlus/id6754364531)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per year |


## Frequently asked questions

### Is GPS free?

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

### Is Pythagorus doodlus free?

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

### Do GPS or Pythagorus doodlus have ads?

Pythagorus doodlus shows ads; GPS does not.

### Which is updated more often, GPS or Pythagorus doodlus?

GPS ships an update fortnightly, and Pythagorus doodlus every 6 days. Most recently, GPS was updated on October 16, 2026 and Pythagorus doodlus on October 15, 2026.

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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.*