PoolCoach: Water Calculator

PoolCoach turns your water test results into exact chemical dosing — calculated for your exact pool or spa volume, not a generic chart. KNOW EXACTLY WHAT TO ADD, AND HOW MUCH Enter your chlorine, pH, alkalinity, calcium, and stabilizer readings. PoolCoach calculates the precise amount of each chemical you need, in the right order, with timing notes — so you're never guessing. BUILT FOR EVERY POOL TYPE Whether you have a standard chlorine pool, a saltwater pool with a salt water generator (SWG), a hot tub, or a spa, PoolCoach adjusts its calculations and targets specifically for your setup. NEVER MISS A SHOCK OR FILTER CLEANING PoolCoach reminds you to shock your pool on a 7-day cycle — adjustable during higher-use summer months — and to clean your filter every 90 days, with follow-ups if you haven't marked it done, so nothing falls through the cracks. DIAGNOSE AND FIX COMMON PROBLEMS Green water, cloudy pool, black or mustard algae, red eyes, staining — pick your symptom and get a complete, step-by-step treatment plan built from real pool chemistry. TRACK YOUR EQUIPMENT Log your pump, filter, and vacuum by brand and model, with automatic reminders for 90-day filter cleaning cycles. SEE YOUR FULL SEASON HISTORY Every reading you log is saved automatically, so you can spot trends and catch small problems before they become expensive ones. SHOP THE EXACT PRODUCT YOU NEED Every recommendation links directly to the specific product and amount — no more guessing what to grab at the store. FULLY BILINGUAL Every screen, label, and notification is available in both English and Spanish — switch instantly with one tap. PoolCoach is built for real pool owners who want straightforward answers, not a chemistry degree. No ads, no free tier — just accurate, exact guidance every time you test your water. Subscription pricing: - Monthly: $3.99/month - Annual: $29.99/year (save 37%) Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription anytime in your iPhone Settings. Privacy Policy: https://coachplatform.app/privacy.html