Thalassa Downloads & RevenueThalassa · App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperCMCC Foundation
CategoryWeather
PriceFree
Released
Rating★ 5.0 (1)
Version1.3
Age rating4+
First seen by us
30 Sep 2026
30 Sep 2026📈Dropped out of every chart we track🆕First spotted by AppInsider📦Version 1.3🆕Released on the App Store
Full timeline · 4 events
- 📈Thalassa dropped out of every chart we trackLast seen 4 Nov
- 🆕Thalassa first spotted by AppInsider#85 in Top Free · Weather · Italy
- 📦Thalassa version 1.3• Sharper maps: high-resolution coastline at every zoom level. OpenStreetMap (ODbL) attribution for coastline data.
• Dynamic colour palette: when you open a layer the colours auto-fit the data in view, then stay stable as you change date or zoom. Re-fit on demand anytime.
• Unified, more readable palette for waves and wind.
• Optimization in maps: Sea Level (SSH) and Air Temperature, with dedicated colour scales.
• EMODnet bathymetry as a dedicated depth map.
• Better display of hourly forecasts in the meteograms.
• Various fixes and performance improvements.… more - 🆕Thalassa released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
Thalassa on the App Store
App details
App ID
6792569125
Publisher
CMCC Foundation
On the store since
Aug 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN IT
Size
6 MB
Also listed in
Navigation
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Weather apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Thalassa
Thalassa turns professional ocean and weather models into a simple map and a friendly advisor for anyone who spends time on the water.
REAL-TIME MARINE MAP
See the Mediterranean come alive with animated sea-surface currents, wave height, wind, rain, cloud cover, pressure, temperature and water quality. Scrub the timeline — hourly near now, out to +10 days — to watch conditions evolve, tap any point for a detailed meteogram, and switch between layers with a single tap.
• Sea-surface currents (animated streamlines)
• Wave height, period and direction
• Wind, air temperature and mean sea-level pressure
• Rain and cloud cover, with sky symbols
• Sea temperature and water transparency
• Satellite and in-situ observations
• Adaptive timeline: hourly near now, out to +10 days
SEA ADVISOR — YOUR AI GUIDE
Not sure where to go? Just ask. Tell Sea Advisor what you want to do — swim, kayak, surf, snorkel or sail — and it checks the live marine forecast to recommend the best spots and times along the coast, with clear safety notes (waves, wind, UV).
TRUSTED DATA
Forecasts come from Copernicus Marine (CMEMS), ECMWF and EMODnet — the same operational models used by scientists — delivered by CMCC, the Euro-Mediterranean Center on Climate Change.
Thalassa is free, has no ads, and does not track you.
REAL-TIME MARINE MAP
See the Mediterranean come alive with animated sea-surface currents, wave height, wind, rain, cloud cover, pressure, temperature and water quality. Scrub the timeline — hourly near now, out to +10 days — to watch conditions evolve, tap any point for a detailed meteogram, and switch between layers with a single tap.
• Sea-surface currents (animated streamlines)
• Wave height, period and direction
• Wind, air temperature and mean sea-level pressure
• Rain and cloud cover, with sky symbols
• Sea temperature and water transparency
• Satellite and in-situ observations
• Adaptive timeline: hourly near now, out to +10 days
SEA ADVISOR — YOUR AI GUIDE
Not sure where to go? Just ask. Tell Sea Advisor what you want to do — swim, kayak, surf, snorkel or sail — and it checks the live marine forecast to recommend the best spots and times along the coast, with clear safety notes (waves, wind, UV).
TRUSTED DATA
Forecasts come from Copernicus Marine (CMEMS), ECMWF and EMODnet — the same operational models used by scientists — delivered by CMCC, the Euro-Mediterranean Center on Climate Change.
Thalassa is free, has no ads, and does not track you.
Latest updates
1.3
• Sharper maps: high-resolution coastline at every zoom level. OpenStreetMap (ODbL) attribution for coastline data.
• Dynamic colour palette: when you open a layer the colours auto-fit the data in view, then stay stable as you change date or zoom. Re-fit on demand anytime.
• Unified, more readable palette for waves and wind.
• Optimization in maps: Sea Level (SSH) and Air Temperature, with dedicated colour scales.
• EMODnet bathymetry as a dedicated depth map.
• Better display of hourly forecasts in the meteograms.
• Various fixes and performance improvements.
