ChlorCast
Pool Water Testing & Balance
Free · Designed for iPad. Not verified for macOS.
Take the guesswork out of pool care with ChlorCast
ChlorCast helps you stay ahead of water problems by combining fast test logging, clear chemistry guidance, chlorine forecasting, and maintenance tracking in one simple app. Whether you want a quick daily chlorine and pH check or a full chemistry snapshot, ChlorCast helps you understand your pool and know exactly what to do next.
With every test you log, ChlorCast turns your readings into practical next steps. Instead of leaving you with numbers alone, the app highlights what needs attention, estimates chemical adjustments, and helps you keep your water balanced with more confidence. Weather-aware chlorine forecasting also helps you prepare for days when heat, sun, and rain may drive chlorine down faster than usual.
ChlorCast is designed for real-world pool ownership, not just calculations. It gives you a current water snapshot, tracks test history over time, helps you monitor chemical inventory, and keeps useful pool-side references close at hand. The result is a cleaner, more organized way to manage your pool all season long.
Features:
• Log quick tests for free chlorine and pH
• Record full chemistry tests including FC, pH, CC, TA, CH, CYA, and temperature
• Get fix recommendations based on your latest readings
• See when water needs attention and what action to take next
• Forecast chlorine loss using weather conditions and upcoming trends
• Track test history and monitor changes over time
• View a current water health snapshot and seasonal metrics
• Manage chemical inventory and estimated chemical costs
• Keep maintenance records in one place
• Use built-in conversion references while testing pool-side
• Set reminders for quick tests, full tests, and forecast-driven chlorine checks
ChlorCast is built to help pool owners stay proactive, reduce uncertainty, and spend less time guessing at water care. From daily upkeep to longer-term chemistry trends, it gives you a clearer picture of your pool and a better plan for keeping it swim-ready.
If you want a smarter way to test, track, forecast, and maintain your pool water, ChlorCast is ready to help.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Added "top-off" recommender for when chlorine is within normal limits but on the low end and may go out within the day or the next day to prevent users from having to constantly test water.
- Fixed small bug where stabilizer recommendation would show zero if the recommended dosing was too small
- Added Metric conversion option
The developer, Sean OBrien, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sean OBrien
- Size
- 5.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 BaldSundae