# CyanoLakes — Your Weather App for Lakes

> Harmful algal bloom forecasts and risk assessments for recreational water users. (iPhone/iPad app by CyanoLakes.)

- Source: https://appshunter.io/ios/app/cyanolakes/id1537355837 (this page in markdown: same URL + `.md`)
- Developer: [CyanoLakes](https://appshunter.io/developer/1537355839)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 43 MB
- Languages: English
- Released: 2020-11-01
- Data updated: 2026-07-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/cyanolakes/id1537355837/reviews.md

## What is CyanoLakes?

Stay Safe from Harmful Algal Blooms
Get near real-time forecasts and satellite imagery to avoid potentially toxic cyanobacterial and harmful algal blooms.

Trusted Risk Assessments
Advisories are based on World Health Organization (WHO) guidelines, helping you make informed decisions before heading to the water.

Plan with Confidence
Whether you're boating, fishing, or swimming, receive daily updates on blue-green algal risks tailored for recreational water use.

Find and Track Your Favourite Lakes
Search for lakes near you or add new ones by dropping a pin on the map. Easily manage your personalised watchlist.

Fresh Data, Updated Daily
Forecasts are updated daily, subject to cloud, ice, or snow cover, depending on the season.

Subscribe to a monthly or annual plan to unlock premium features:
• Browse the latest high-definition satellite imagery for chlorophyll-a, blooms, vegetation and more
• 10-day ahead forecasts, including charts
• Notifications within 2 hours of detection 
• Loads of extra water quality data including health risk, biological and water clarity indicators and coverage estimates
• Monitor up to 10 lakes of your choice

Free version includes:
• Cyanobacteria health risk levels based on WHO guidelines
• Advisories for recreational users
• Up to 4 lakes

You can manage and cancel your subscriptions by going to your account settings after purchase. 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. Cancellation of the current active subscription period is not allowed.

For more details, visit https://www.cyanolakes.com/faqs/

Terms of Use: https://www.cyanolakes.com/terms-of-use/
Privacy Policy: https://www.cyanolakes.com/privacy-policy/

© CyanoLakes (2015-2026)

* size limits apply, minimum width of approx. 600 m or 2000 ft wide

## Key features

- Harmful algal bloom forecasts
- Satellite imagery
- WHO-based risk assessments
- Daily water quality updates
- Personalized lake watchlist
- 10-day ahead forecasts (premium)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Premium Subscription | $4.99 | per month |
| Annual Premium Subscription | $34.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/cyanolakes/id1537355837/reviews.md

### 1/5 — App Buggy

*2023-09-05*

I signed up for the 7-day free trial subscription but was billed immediately. The app then went completely white and crashed. After closing and reopening the app my purchase wasn’t recognized. I clicked “Restore Purchase” which was confirmed and then the app crashed again. Tried several times, the app always crashes. I then went to the developer site to reach out and the only contact info is an enquiry form with no place to write anything. So I’m out $9.99 on a 7-day free trial with an app that doesn’t work…

**Developer response:** Hi Brendan. Thanks for your review. We’re sorry that you had a bad experience. As we are a small team it’s difficult for us to support all new versions of iOS and Android. We will release and update shortly that will address your problems. You’ve been in touch with our support channel at support@cyanolakes.com as per the app description. We arranged a login for you as compensation. Did we manage to solve the problem? Thanks!

## Frequently asked questions about CyanoLakes

### What is CyanoLakes?

CyanoLakes provides near real-time forecasts and satellite imagery to help users avoid potentially toxic cyanobacterial and harmful algal blooms. It offers trusted risk assessments based on WHO guidelines for recreational water users.

### What are the premium features of CyanoLakes?

Premium features include high-definition satellite imagery, 10-day ahead forecasts with charts, notifications within 2 hours of detection, extensive water quality data, and the ability to monitor up to 10 lakes.

### How accurate are the forecasts?

Forecasts are updated daily and are subject to factors like cloud, ice, or snow cover. The app uses WHO guidelines for risk assessments, providing a basis for informed decisions.

### Can I track multiple lakes with CyanoLakes?

The free version of CyanoLakes allows you to monitor up to 4 lakes. The premium subscription unlocks the ability to monitor up to 10 lakes of your choice.

### How do I manage my subscription for CyanoLakes?

You can manage and cancel your subscriptions by going to your account settings after purchase. Payment is charged to your account, and subscriptions automatically renew unless canceled at least 24 hours before the current period ends.

### What devices is CyanoLakes available on?

CyanoLakes is currently supported on iPhone and iPod devices. The app requires a minimum width of approximately 600 meters or 2000 feet for lake monitoring.

### How often is CyanoLakes updated?

The app's latest version is 2.4.2, and it was last updated on May 5, 2026. Forecasts themselves are updated daily, with premium features offering more detailed and timely information.

### What is the user sentiment for CyanoLakes?

Based on the provided data, CyanoLakes has a rating of 1.0 stars from 1 rating. This indicates a very limited user base and potentially negative initial feedback.

## Version history (last 5 releases)

### 2.4.3 — 2026-06-11

- Bug fixes

### 2.4.2 — 2026-05-05

- Adds algal bloom levels and cyanobacteria coverage metrics
- Improvements to charts, metrics, maps and settings
- Bug fixes and improvements

### 2.4.10 — 2025-08-05

- Fixed a bug that was incorrectly logging out premium users
- General Improvements

### 2.4.6 — 2025-07-14

Fixes and Improvements

### 2.4.5 — 2025-07-11

- Completely redesigned user interface
- More data for premium users
- Improved charts
- Performance upgrades

## Apps similar to CyanoLakes

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Heart Rate Monitor-Plus1Health](https://appshunter.io/ios/app/heart-rate-monitor-plus1health/id1535822660) | 4.6 (1,259) | Free | Health & Fitness |
| [HIIT Dual Timer](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060) | 3.0 (1) | Free | Health & Fitness |
| [Wash your hands now](https://appshunter.io/ios/app/wash-your-hands-now/id1503634740) | 4.2 (33) | $0.99 | Health & Fitness |
| [CountDown 20](https://appshunter.io/ios/app/countdown-20/id1504881520) | 5.0 (1) | Free | Health & Fitness |
| [Cronicl](https://appshunter.io/ios/app/cronicl/id1502820420) | — | Free | Health & Fitness |
| [HeartChart for Everyone](https://appshunter.io/ios/app/heartchart-for-everyone/id1497197080) | 3.0 (2) | Free | Health & Fitness |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-05.*