Fosiva vs Meduseo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fosiva
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.
- Real-time hazard maps
- Interactive fire risk map
- Flood risk mapping
- Weather warning notifications
- Official safety guidance
- Environmental awareness information
Read full descriptionHide full description
Fires, mountain closures, floods, weather warnings... FOSIVA provides real-time information and helps you respond effectively to natural hazards. A free, simple, and multilingual application designed for citizens and local stakeholders. INTERACTIVE MAP: - Fire risk and mountain access map - Flood risk map - Weather warning map REAL-TIME ALERTS: - Notifications to alert you of mountain closures, weather warnings, and major events OFFICIAL DATA: - The right actions to take in case of danger - Environmental and biodiversity awareness in the Mediterranean - First aid measures The data comes from official sources. They are collected from public stakeholders, such as the Entente Valabre, departmental prefectures, Vigicrues, and Météo-France. CONTACT US Contact us at contact@fosiva.fr for any questions.
Meduseo
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.
- Real-time jellyfish presence data
- Color-coded map visualization
- User-submitted jellyfish reports
- Updated every 4 hours
- Year-round availability
- Search by city
Read full descriptionHide full description
Tired of arriving on a beach to realize that it is full of jellyfish? Impossible to swim, in short a spoiled moment! With Meduseo, the jellyfish weather, find out in real time about the presence of jellyfish on the beaches. You only have to enter the name of the city to access the information. The data is presented in the form of bubbles on the map going from yellow to red: - No color: no jellyfish reported - Yellow: Rare jellyfish (you may come across one isolated, no risk for swimming) - Orange: Some jellyfish (swimming may be possible, but be careful) - Red: Many jellyfish (we do not recommend swimming) The base is updated every 4 hours for France, Spain, Italy, Australia, and New Zealand. Meduseo uses a unique algorithm, specifically developed for this theme making data available in summer but also throughout the year! You can also report the presence of jellyfish on beaches directly from the application and thus share your observations with the community.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Fosiva | Meduseo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 90.0% of reviews — better | 81.3% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 91 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Physis | Jeremy Deverdun |
Customer experience
Fosiva
Meduseo
In-app purchases
Fosiva
No in-app purchases
Meduseo
No in-app purchases








