DoseMyPool: Pool Calculator
Hot tub, spa & salt chemistry
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
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.
Privacy Policy: https://dosemypool.com/privacy
Terms of Service: https://dosemypool.com/terms
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Translation fixes.
A few labels on the Chemicals on Hand screens and the filter pressure chart were still appearing in English for German, Spanish, French, Italian and Portuguese. They now read correctly in every language the app supports.
The developer, Handler Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Handler Labs LLC
- Size
- 5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Italian, Portuguese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime — Multiple Pools $39.99
- Premium Pool Care — Monthly $4.99
- Premium Pool Care — Yearly $19.99
- Copyright
- © 2026 Handler Labs LLC