
PoolCoach: Water Calculator
Exact Chemical Dosage Math Fix
About
This app provides exact chemical dosing recommendations for your pool or spa based on your specific water test results and volume. It helps diagnose and fix common pool problems, tracks equipment, and saves your full season history for trend spotting. It also offers reminders for essential maintenance tasks.
What's New in PoolCoach
1.0.5
September 28, 2026
Updated subtitle and search keywords for better App Store discovery. No app changes in this version.
Subscriptions & In-App Purchases
PoolCoach Monthly
Keep your pool perfectly balanced, every month.
Developer apps
FAQ
How does PoolCoach calculate chemical dosages?
PoolCoach calculates precise chemical dosages by taking your specific water test readings (chlorine, pH, alkalinity, calcium, stabilizer) and your pool or spa's exact volume. It then provides the exact amount of each chemical needed, in the correct order, with timing notes.
Does PoolCoach support different pool types?
Yes, PoolCoach is built for various pool types, including standard chlorine pools, saltwater pools with a salt water generator (SWG), hot tubs, and spas. It adjusts its calculations and targets specifically for your setup.
What kind of reminders does PoolCoach offer?
PoolCoach reminds you to shock your pool on a 7-day cycle (adjustable) and to clean your filter every 90 days. It provides follow-ups if you haven't marked these tasks as done.
Can PoolCoach help diagnose pool problems?
Yes, PoolCoach can help diagnose common pool problems like green water, cloudy pools, algae, red eyes, and staining. It provides a complete, step-by-step treatment plan based on real pool chemistry.
What is the subscription cost for PoolCoach?
PoolCoach offers two subscription plans: a monthly subscription for $3.99/month and an annual subscription for $29.99/year, which saves you 37%. Payment is charged to your Apple ID and subscriptions auto-renew.
How do I cancel my PoolCoach subscription?
You can manage or cancel your PoolCoach subscription anytime within your iPhone Settings. Subscriptions must be canceled at least 24 hours before the end of the current period to avoid renewal.
Is PoolCoach available in multiple languages?
Yes, PoolCoach is fully bilingual and available in both English and Spanish. You can switch between languages instantly with one tap on any screen, label, or notification.
Does PoolCoach have ads?
No, PoolCoach is ad-free. The app is designed to provide accurate, exact guidance without advertisements, focusing solely on its utility features.






