Pool Math Calculator
Pool doses & when to swim
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Test the water, get a clear plan: doses in cups and jugs, in the right order, and a flag that tells you when it's safe to swim.
Test the water. Get a plan.
Pool Calculator turns your test strip or drop-kit readings into clear steps: what to add, how much, in what order, and when it's safe to swim again.
• A plan after every test, with how long to wait between steps
• Doses in fl oz, cups, jugs and pounds, sized for your pool and the products you buy: liquid chlorine, bleach, cal-hypo, muriatic acid, soda ash, borax and more
• A lifeguard flag on your pool: green, yellow or red, and a tap tells you why
• Green or cloudy water? Shock doses sized for your stabilizer, and a clear sign when the algae is really gone
• It remembers what you've added, so nothing gets dosed twice
• Your pool in 3D: rectangle, round, oval or kidney; plaster, vinyl or fiberglass; chlorine or salt water
• What if: see what an addition will do before it goes in
• Water balance (CSI) to protect plaster and equipment
• History with trend charts, test reminders and CSV export for your pool service
• Several pools, your own targets, U.S. or metric units
Chlorine targets follow your stabilizer (CYA) level, the way pool experts recommend. Your pool data stays on your device.
Doses are estimates for planning: always follow the product label, add one chemical at a time, and retest before adding more.
Ratings & Reviews
• Your pool in 3D, with a lifeguard flag that shows when it's safe to swim
• A clear plan after every test: what to add, how much and in what order
• Doses in cups and jugs, sized for the products you buy
• It remembers what you've added, so nothing is dosed twice
• A step-by-step plan for green or cloudy water
• On iPad in landscape, the plan sits beside your pool
The developer, Sergii Nesterenko, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sergii Nesterenko
- Size
- 4.3 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlock Pro $12.99
- Copyright
- © 2025 Sergii Nesterenko
