# Dorsal GPS vs Prism Plus

The clearest difference is update cadence: Dorsal GPS at every 8 days against Prism Plus's monthly. Dorsal GPS also leads on iOS requirement (8.0 vs 15.1). 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.

Dorsal GPS ships an update every 8 days, Prism Plus monthly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Dorsal GPS | Prism Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dorsal-gps/id1093399785/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | Free | — |
| Size | 48 MB | 66 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bluebottle Digital Pty. Ltd.](https://appshunter.io/developer/328028167) | [Prism Pay Pty Ltd](https://appshunter.io/developer/1417672223) |

## What reviewers say

### Dorsal GPS

[App page](https://appshunter.io/ios/app/dorsal-gps/id1093399785)

This application allows pilots and fishermen to quickly report shark sightings using GPS coordinates. Users can input details like length and species, and attach photos or videos. Access requires registration, and reports are branded.

**Highlights:** GPS coordinate logging, Shark sighting reports, Add details (length, species), Attach photos and videos, Offline functionality, User registration required

**Features:** macOS Compatibility

**In-app purchases:** none


### Prism Plus

[App page](https://appshunter.io/ios/app/prism-plus/id1619738937)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dorsal GPS free?

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

### Is Prism Plus free?

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

### Do Dorsal GPS or Prism Plus have ads?

Neither Dorsal GPS nor Prism Plus shows ads.

### Which is updated more often, Dorsal GPS or Prism Plus?

Dorsal GPS ships an update every 8 days, and Prism Plus monthly. Most recently, Dorsal GPS was updated on November 2, 2026 and Prism Plus on October 30, 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.*