Meduseo vs Seander
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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.
Seander
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Seander helps you decide where to anchor and when to go, with a clear read of marine weather tailored to each anchorage — not just a generic forecast for the area. Check marine forecasts, explore Mediterranean anchorages, save your spots, and get a quick interpretation so you can sail with more judgement and confidence. What you can do with Seander: • View wind, swell and the day’s evolution, with a full forecast expandable from Home. • See each anchorage’s status (comfortable, fair or rough) based on wind, sea state and shelter protection. • Explore anchorages and harbours on the map, with detail sheets, comfort timeline and shelter rose. • Ask Seander Advisor in plain language: should I stay here?, where should I anchor?, how’s the weather evolving? • Save favourite locations and see top picks nearby when conditions allow. • Use the app in light or dark mode, built for daytime checks and night watches on board. Seander is built for skippers, crews and sailing enthusiasts who want useful, direct, actionable information — less noise, more judgement before you leave. Terms of use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Meduseo at none against Seander's 2. Seander's advantage is ads (none vs shown). On price, update cadence, 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. Seander sells 2 in-app purchases, starting at $3.99 per month. Meduseo asks for nothing beyond the download.
Meduseo ships an update every 2 weeks, Seander every 10 days. The most recent releases landed on September 23, 2026 and August 31, 2026 respectively.
| Parameter | Meduseo | Seander |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 81.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeremy Deverdun | Pau Bonet |
In-app purchases
Meduseo
No in-app purchases
Seander
- Seander Pro Monthly7 Days trial$3.991 Month
- Seander Pro Annual1 Year trial$17.991 Year









