ChlorCast
Pool Water Testing & Balance
About
This app simplifies pool care by logging water tests, providing chemistry guidance, and forecasting chlorine levels. It helps users understand their pool's needs and maintain balanced water with practical, actionable advice.
What's New in ChlorCast
1.4
July 10, 2026
- 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
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FAQ
What pool chemistry parameters can ChlorCast test?
ChlorCast allows logging of quick tests for free chlorine and pH. It also supports full chemistry tests including FC, pH, CC, TA, CH, CYA, and temperature.
Does ChlorCast offer guidance on water balance?
Yes, ChlorCast provides fix recommendations based on your latest readings. It highlights what needs attention and suggests chemical adjustments to keep your water balanced.
How does ChlorCast forecast chlorine levels?
ChlorCast uses weather-aware forecasting to predict chlorine loss. It considers heat, sun, and rain to help you prepare for days when chlorine may deplete faster.
Can I track my pool's water history with ChlorCast?
Absolutely. ChlorCast tracks your test history over time, allowing you to monitor changes and understand seasonal metrics for your pool's water health.
Does ChlorCast help manage pool chemicals?
Yes, ChlorCast helps you monitor your chemical inventory and provides estimates of chemical costs, aiding in better management of your pool supplies.
What devices is ChlorCast available on?
ChlorCast is available for iPhone and iPad devices.
How often is ChlorCast updated?
The latest version, 1.3, was released on June 28, 2026, indicating regular updates to improve functionality and reliability.
What is the age rating for ChlorCast?
ChlorCast has an age rating of 4+, making it suitable for a wide range of users.