My Coast vs Marla Blue
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
My Coast
This app provides real-time coastal safety and information to help users make informed decisions before visiting the beach or entering the water. It offers details on tides, sea conditions, weather, and local facilities, tailored to specific activities and amenity needs.
- Live safety data
- Tide and sea condition information
- Weather forecasts
- Local facilities and amenities
- Activity-specific location filtering
- Amenity-based location filtering
Read full descriptionHide full description
My Coast is a coastal safety and information app developed in collaboration with the RNLI, Meteomatics and SWW, endorsed by Surf Life Saving Great Britain, Visit Cornwall, Cornwall Council and the Above Water charity. Our vision is to help improve survival rates for coastal incidents by enabling better decision making before entering the water or visiting the beach. My Coast gives you all the information you need to choose the best location for a safe, enjoyable day at the beach. You’ll have live safety data detailing tides, sea conditions, weather, local facilities and amenities, all helping you to make the best decisions both before and during your visit. My Coast allows users to select the coastal activity they are interested in (for example: paddle-boarding, surfing, swimming) and then select which facilities and amenities they require (such as a cafe, parking, showers or toilets). Users will then be presented with a filterable list of the best locations on the coast for their requirements, using real-time data on location, weather, wind speed and direction, activities, facilities and amenities.
Marla Blue
Plan your underwater adventures with detailed marine weather forecasts. Get AI-powered visibility predictions, swell, wind, tide, and temperature data for over 1500 dive spots worldwide. Receive algae bloom alerts and real-time reports from a community of local divers.
- Underwater visibility forecasts (AI & satellite)
- Swell, wind, tides, water temperature
- Algae bloom alerts
- Real-time viz reports & photos
- 1500+ global dive spots
- Community-driven insights
Read full descriptionHide full description
Dive smarter with Marla, the ultimate marine weather app for divers! Whether you’re a scuba diver, freediver, spearo or snorkeler, Marla gives you everything you need to plan your next underwater adventure. Check among 1500+ dive spots across the UK, Ireland, Australia, New Zealand, South Africa & California or tap anywhere on the map to get: - Underwater visibility forecasts powered by AI and satellite data - Swell, wind, tides, water temperature & wave conditions - Algae bloom alerts - Real-time viz reports and photos from the growing community of local divers Stop guessing. Download Marla and dive with clarity. Learn more: https://www.marla.blue/how-marla-works Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://marla.blue/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: My Coast at none against Marla Blue's 4. My Coast also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). Marla Blue's advantage is update cadence (every 3 days vs every 10 days) and review sentiment (100% vs 85%). On price, monetization model and device support 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. Marla Blue sells 4 in-app purchases, starting at $9.99 per month. My Coast asks for nothing beyond the download.
My Coast ships an update every 10 days, Marla Blue every 3 days. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.
| Parameter | My Coast | Marla Blue |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (4 ratings) — better |
| Positive reviews | 85.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 4 — better |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 20 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Flow Mobile Ltd | Ocean AI |
Customer experience
My Coast
Marla Blue
In-app purchases
My Coast
No in-app purchases
Marla Blue
- Marla Blue Monthly3 Days trial$9.991 Month
- Dive Season Pass (6 months)3 Days trial$34.996 Months
- Annual7 Days trial$44.991 Year
Show 1 moreShow fewer
- Marla Annual Subscription7 Days trial$59.991 Year









