# Fosiva vs Meduseo

The clearest difference is ads: Fosiva at none against Meduseo's shown. Fosiva also leads on monetization model (free vs ad-supported) and review sentiment (90% vs 81%). Meduseo's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Fosiva ships an update every 2 months, Meduseo every 2 weeks. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Fosiva | Meduseo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/meduseo/id6535647657/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | **90.0% of reviews** | 81.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 91 MB | 38 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Physis](https://appshunter.io/developer/1740338406) | [Jeremy Deverdun](https://appshunter.io/developer/1756795140) |

## What reviewers say

### Fosiva

[App page](https://appshunter.io/ios/app/fosiva/id6483928435)

Get real-time information and alerts about natural hazards like fires, floods, and weather warnings. This free, multilingual app provides official data and guidance for effective response and environmental awareness.

**Highlights:** Real-time hazard maps, Interactive fire risk map, Flood risk mapping, Weather warning notifications, Official safety guidance, Environmental awareness information

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

**In-app purchases:** none


### Meduseo

[App page](https://appshunter.io/ios/app/meduseo/id6535647657)

Get real-time updates on jellyfish presence at beaches to avoid unpleasant surprises. Visualize jellyfish density on a map with color-coded indicators and contribute your own sightings to the community.

**Highlights:** Real-time jellyfish presence data, Color-coded map visualization, User-submitted jellyfish reports, Updated every 4 hours, Year-round availability, Search by city

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

**In-app purchases:** none


## Frequently asked questions

### Is Fosiva free?

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

### Is Meduseo free?

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

### Do Fosiva or Meduseo have ads?

Meduseo shows ads; Fosiva does not.

### Which is updated more often, Fosiva or Meduseo?

Fosiva ships an update every 2 months, and Meduseo every 2 weeks. Most recently, Fosiva was updated on September 22, 2026 and Meduseo on September 23, 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.*