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About this app

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.

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.

Free version includes:
• Cyanobacteria health risk levels based on WHO guidelines
• Recreational advisories for full and partial-contact water sports
• Pollution levels based on OECD guidelines
• Estimated cell count and microcystin toxin concentrations
• Area coverage statistics for cyanobacteria and vegetation
• No ads, ever

Subscribe to unlock these premium features:
• The latest high-definition satellite imagery with chlorophyll-a, blooms, vegetation and true colour maps
• Alerts for cyanobacteria bloom events and updates sent to your notifications centre
• Add an unlimited number of lakes to your subscription
• Forecasts (not currently available - to be released in a future version)

Payment will be charged to your Apple ID 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 App Store account settings after purchase. Cancellation of the current active subscription period is not allowed.

For more details, see the FAQs page in the App or visit

© CyanoLakes (2015-2021)
* size limits apply
Updated on
Sep 24, 2021

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

What's new

- Bug fixes
- Improvements