# Dorsal GPS vs Vizzbud

The clearest difference is review sentiment: Vizzbud at 100% against Dorsal GPS's 0%. Dorsal GPS's advantage is iOS requirement (8.0 vs 18.0). On price, update cadence, ads and in-app purchases 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, Vizzbud every 6 days. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Dorsal GPS | Vizzbud |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | Free | Free |
| Size | 48 MB | 47 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bluebottle Digital Pty. Ltd.](https://appshunter.io/developer/328028167) | [Jacob Bowerman](https://appshunter.io/developer/6772992731) |

## 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


### Vizzbud

[App page](https://appshunter.io/ios/app/vizzbud/id6772992729)

Discover ideal dive conditions with a live map and detailed forecasts. Log your dives, share experiences with a community of divers, and plan future excursions with smart alerts. This app is designed for underwater enthusiasts of all types.

**Highlights:** Live conditions map with color-coded sites, Detailed hourly forecasts and site information, Comprehensive dive logging with photos, Smart dive plan alerts, Community feed for sharing and interaction, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Dorsal GPS free?

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

### Is Vizzbud free?

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

### Do Dorsal GPS or Vizzbud have ads?

Neither Dorsal GPS nor Vizzbud shows ads.

### Which is updated more often, Dorsal GPS or Vizzbud?

Dorsal GPS ships an update every 8 days, and Vizzbud every 6 days. Most recently, Dorsal GPS was updated on October 22, 2026 and Vizzbud on October 28, 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.*