In-app purchases
9 reviews
Content rating
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About this app

Weather-like information for cyanobacterial and algal blooms for the world's lakes. Now with 10-day forecasts, completely redesigned user interface, and improvements.

Access cyanobacteria health risk levels based on the World Health Organisation’s guidelines for any lake on earth* from satellite imagery.

Make informed decisions and stay clear of potentially toxic cyanobacteria blooms with advisories for full and partial contact water sports. Use when on fishing, boating, skiing and doing water sports.

Search for lakes near you or add a new one by dropping a pin on the map. Easily add or remove lakes from your list.

Daily updates depend on cloud, ice and/or snow cover.

Subscribe monthly or annually to unlock premium features:
• 10-day forecasts
• High-definition satellite imagery with maps for chlorophyll-a, blooms, vegetation and more
• Alerts sent to your notifications centre
• Additional statistical information including areal coverage statistics
• Up to 10 lakes

Free version includes:
• Cyanobacteria health risk levels based on WHO guidelines
• Recreational advisories for full and partial-contact water sports
• Trophic status based on OECD guidelines
• Up to 4 lakes

Subscribe in App. Payment will be charged to your account at the confirmation of purchase. The subscription automatically renews unless it is cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings after purchase. Cancellation of the current active subscription period is not allowed.

For more details, visit

Terms of Use:
Privacy Policy:

© CyanoLakes (2015-2022)

size limits apply, must at least 500 m wide
Updated on
Sep 9, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance and Device or other IDs
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

9 reviews
Paul Brent
January 24, 2024
Great app when it works. Now it asks me to restore my purchase each time I open the app and then it crashes. 4 stars when it works
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Rachel Kegge
September 10, 2022
Love this app, all dams are easy to add and it is so convenient. Love being able to check water quality of any dam I go to. Great app
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April 3, 2023
We're always working hard to improve the app. Thanks for your download and feedback.
John Kayser
March 13, 2023
Won't install on Galaxy S9.
Did you find this helpful?
April 3, 2023
Dear John. We are sorry that you have an issue on your device. We are aware of crashes affecting Samsung Galaxy devices and are working to fix them. In the mean time I can recommend you try install on an alternative device if you have one. Please also check that the app is not installed in the background by browsing your app library.

What's new

- Redesigned UI
- Performance improvements
- Bug fixes