DoseMyPool: Pool Calculator

Enter your test numbers. Get the exact product and amount to add, in the safe order. Works offline. Your data stays on your device.

WHAT IT DOES Enter your test numbers and DoseMyPool tells you exactly what to add: the precise product, the amount, the safe order to add it, the side effects, and never-mix safety warnings. Not just a target number: the actual fix.

Works for pools, hot tubs, and swim spas: chlorine, saltwater (SWG), and bromine.

FREE, AND GENUINELY USEFUL • Exact dosing calculator (chlorine, pH, alkalinity, CYA, calcium, salt) • Unlimited test logging, history, and trend charts • Water balance (LSI) • Weekly test reminder · always-free CSV export • Pool chemistry basics: what each reading is, why it matters, and your pool's ideal range, one tap away

PREMIUM (optional) • Trend insights that catch pH drift and CYA creep early • Salt Cell Mode: the exact output setting and pump hours for your saltwater chlorinator • The full troubleshooting library (green water, cloudy water, and more) • Equipment & maintenance reminders, cost tracking • Photo log and shareable PDF reports • Chemicals on hand: what's on the shelf counts down as you dose, with a warning before you run out • Filter pressure tracking that tells you when the filter actually needs cleaning 7-day free trial on the annual plan. A one-time Lifetime unlock is available.

PRIVATE BY DESIGN No accounts. No ads. Your data is never sold. Everything stays on your device, and the chemistry runs entirely offline, so it works poolside with no signal. Back up everything to a file you keep, and export your data anytime, even without a subscription.

ACCURATE CHEMISTRY Dosing is derived from first principles (stoichiometry plus a carbonate-equilibrium model for pH and alkalinity) and validated against published reference doses. Free chlorine targets scale with your cyanuric acid (CYA).

SUBSCRIPTION DETAILS Premium is an auto-renewing subscription (annual with a 7-day free trial, or monthly). Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Lifetime is a one-time purchase, not a subscription.

Estimates only. Always follow product labels, add chemicals safely, and never mix chemicals. Made by Handler Labs LLC.

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