Thalassa vs Cloudo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thalassa
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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.
Cloudo
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Cloudo is weather that thinks ahead. Traditional weather apps give you numbers. Cloudo helps you understand what those numbers actually mean for your day. Instead of simply showing temperature, rain probability, wind and UV, Cloudo turns forecast data into useful, human-friendly guidance. Know when rain may start, whether you should bring an umbrella, how the temperature will change, what conditions may feel like outside and what you may want to prepare before leaving home. WEATHER INTELLIGENCE Cloudo analyzes changing weather conditions and highlights what deserves your attention. See important shifts in rain, temperature, wind, UV and other conditions without digging through endless charts. YOUR WEATHER ASSISTANT Ask what matters to you and explore weather through practical insights. Cloudo is designed around decisions, not just measurements. TODAY AT A GLANCE Get a clear view of the day ahead with hourly conditions and useful highlights. Quickly understand what is changing and when. SMART RAIN INSIGHTS A rain percentage alone doesn’t tell the whole story. Cloudo helps you understand when rain is expected, how conditions may change and when carrying an umbrella could make sense. UV & SUN GUIDANCE See UV conditions throughout the day and understand when sun protection deserves more attention. OUTFIT SUGGESTIONS Weather affects what you wear. Cloudo uses temperature, feels-like conditions, wind and other forecast information to provide useful clothing suggestions for different parts of your day. WIND, HEAT & MORE Explore wind, pressure, temperature trends and additional weather details when you want to go deeper. PLACES Keep track of weather in the locations that matter to you. Compare conditions and stay prepared for different places. BUILT FOR REAL LIFE Cloudo isn’t designed to make weather more complicated. It is designed to make weather easier to use. Whether you’re deciding what to wear, wondering if you need an umbrella, planning a walk, preparing for strong sun or simply checking the day ahead, Cloudo helps turn forecast data into practical information. Less weather data to decode. More useful answers. Meet Cloudo — your weather intelligence assistant. TERMS AND CONDITIONS (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Thalassa at none against Cloudo's 3. On price, ads, 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. Cloudo sells 3 in-app purchases, starting at $0.99 per 7 days. Thalassa asks for nothing beyond the download.
| Parameter | Thalassa | Cloudo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | CMCC Foundation | YUNUS EREN ORUC |
In-app purchases
Thalassa
No in-app purchases
Cloudo
- Cloudo Horizon Weekly$0.997 Days
- Cloudo Horizon3 Days trial$2.991 Month
- Cloudo Horizon Yearly3 Days trial$9.991 Year









