# TopTracker GPS vs Sentinel GPS Tracker

The clearest difference is update cadence: TopTracker GPS at every 13 months against Sentinel GPS Tracker's every 35 months. TopTracker GPS also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TopTracker GPS ships an update every 13 months, Sentinel GPS Tracker every 35 months. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | TopTracker GPS | Sentinel GPS Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 35 months |
| Size | 58 MB | 40 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Grupo Datasoft Ltda.](https://appshunter.io/developer/1035131285) | [Josue Moreno](https://appshunter.io/developer/1615979486) |

## What reviewers say

### TopTracker GPS

[App page](https://appshunter.io/ios/app/toptracker-gps/id6446206602)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentinel GPS Tracker

[App page](https://appshunter.io/ios/app/sentinel-gps-tracker/id6470811201)

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

**In-app purchases:** none


## Frequently asked questions

### Is TopTracker GPS free?

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

### Is Sentinel GPS Tracker free?

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

### Do TopTracker GPS or Sentinel GPS Tracker have ads?

Neither TopTracker GPS nor Sentinel GPS Tracker shows ads.

### Which is updated more often, TopTracker GPS or Sentinel GPS Tracker?

TopTracker GPS ships an update every 13 months, and Sentinel GPS Tracker every 35 months. Most recently, TopTracker GPS was updated on October 3, 2026 and Sentinel GPS Tracker on October 18, 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.*