Take the guesswork out of pool chemistry
Track your readings, get instant dosing recommendations, and monitor water balance with LSI — all offline, all private, all on your iPhone or iPad.
Free to use. Pro upgrade available for $4.99 (one-time).
Track your readings, get instant dosing recommendations, and monitor water balance with LSI — all offline, all private, all on your iPhone or iPad.
Get an instant 0–100 score based on five key parameters. Know at a glance if your water is balanced.
Langelier Saturation Index tells you if your water is corrosive or scale-forming. We calculate it automatically.
Exact chemical amounts based on your pool size and current readings. No more guessing or Googling.
See how your chemistry changes over time with interactive charts. Spot patterns before they become problems.
Set reminders for water tests, filter cleaning, SWG cell maintenance, and chemical inventory checks.
All data stays on your device. No account required, no cloud, no tracking. Works without an internet connection.
Use your existing test kit or strips as usual.
Enter your results — FC, pH, alkalinity, and more.
See exactly what to add and how much, tailored to your pool.
Watch your water improve with trends and health scores.
No. PoolChem Tracker works completely offline. All data is stored locally on your device.
Yes. We don't collect any data, require an account, or use analytics. Your readings never leave your device.
All pool types — chlorine, salt water (SWG), and more. Configure your pool settings and get tailored recommendations.
Free includes logging, recommendations, and health scores. Pro ($4.99 one-time) adds trend charts, CSV export, advanced LSI insights, and inventory tracking.
The Langelier Saturation Index measures water balance. It tells you if your water will corrode surfaces or form scale — both can cause expensive damage.
Yes. PoolChem Tracker runs on iPhone and iPad with iOS 18 or later.
Join pool owners who've stopped guessing and started tracking.