Clear Water Pool Chemistry

Clear Water makes pool care simple. Log a water test and instantly know whether your water is balanced, what to add, and how your chemistry is trending, all on your device with no account.

WATER TESTING AND BALANCE
Log FC, CC, pH, TA, CH, CYA, salt, and temperature. Clear Water calculates your water balance (LSI) with a clear, color-coded verdict and gives dosing suggestions scaled to your pool's volume. Free chlorine targets adjust to your stabilizer (CYA), the way pool chemistry actually works, and shock guidance flags when combined chlorine or low FC calls for it.

TRENDS AND HISTORY
See every parameter over time with simple trend charts, so you can spot a drift before it becomes a problem.

REMINDERS (PRO)
Set recurring water-health and equipment maintenance reminders with optional notifications, so nothing slips through the cracks.

BUILT FOR REAL POOLS
Chlorine, salt, or bromine. Indoor or outdoor. Track multiple pools and your equipment in one place (Pro).

FREE, WITH AN OPTIONAL ONE-TIME UPGRADE
Free includes unlimited water tests, balance and dosing, FC/CYA targeting, one pool, and recent trends. Clear Water Pro is a single one-time purchase (no subscription) that unlocks multiple pools, the full Reminders tab, equipment tracking with auto-scheduled maintenance, and unlimited history.

PRIVATE BY DESIGN
No account, no sign-in. Your pools, tests, and reminders stay on your device and are never uploaded. The app works offline. Optional anonymous usage analytics are off by default and can be turned on or off anytime.

A NOTE ON DOSING
Ranges and whether each reading is in or out of range are factual. Dosing is a goal and an approximate starting point, not a prescription. Add chemicals gradually, re-test, and always follow safe handling practices.