PoolMath makes swimming pool care, maintenance and management easy by tracking chlorine, pH, alkalinity and other levels to help calculate how much salt, bleach and other chemicals to add. Keep swimming in your TroubleFreePool with Pool Math.

Crystal clear algae free pool water is what Trouble Free Pool Math is committed to. Pool Math performs all the calculations you need to keep your chlorine, pH, calcium, alkalinity, and stabilizer levels balanced.

Why choose Pool Math over the others?

Other apps claim to make testing easy by using test strips and your phone's camera. Unfortunately, this is simply too good to be true. Test strips are notoriously inaccurate and end up costing you much more money in both chemicals and the tests themselves in the long run. Trouble Free Pool believes using a proper test kit is much easier, effective, and economical in the long run.

By following these calculations the pool owner achieves and maintains crystal clear water without reliance on the often unproductive advice and unneeded expense from pool stores.

Pool Math's great features include:
• Calculators for pH, Free Chlorine, Calcium Hardness, Salt, Total Alkalinity, Calcium Hardness, Borates, CSI
• Track Maintenance: Backwashing, Vacuuming, Filter Cleaning, Filter Pressure, SWG Cell %, Flow Rate
• Track Chemical Additions
• Track Weather conditions with your logs
• Calculate the Effects of Adding chemicals to your pool
• Bleach Price Calculator - Find the best deals on bleach easily
• Data backup / Export

Premium Subscribers get access to these additional features:
• Unlimited Test Log History Storage
• Maintenance Reminders
• Cloud Sync/Backup
• Sync across multiple devices
• Unlimited Pool / Spa Configurations
• Test Log CSV Import / Export

Pool Math Premium Subscription details:
• Auto-renewable subscription
• 1 year for $7.99 USD
• Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration of 1 year) unless auto-renew is turned off at least 24 hours before the end of the current period.
• Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase.
• Privacy Policy & Terms of Use:

What's New

Version 230

- New Expense Tracking - log costs of chemicals, services, etc!
- Various bug fixes, tweaks, and improvements to keep you swimming

Ratings and Reviews

3.9 out of 5

28 Ratings

28 Ratings

The perfect app for your pool



This app gets better with every release. Now a user can track multiple different items with separate log types (test results, maintenance, chemical addition, expense/purchases, etc). Also, the “Effects of Adding Chemicals” makes it easier to see how much additions of a specific chemical will change your water chemistry. The weather tracking API is also a nice touch for automatically logging weather data.

This App is jam-packed with great features. Many thanks to the developers for remaining so dedicated to this critical piece of pool care technology.


TFP is a site dedicated to helping every residential pool owner take control of their pools and have the very best pools possible. I have used and support TFP for many years now.

This app is a culmination of over a years worth of work and it finally gives smartphone owners pool side access to the chemical calculator, aka Pool Math, that TFP bases its methodology on.

This app is a fantastic addition to TFP and well worth the price. Anyone who owns a pool and wishes to get rid of their lousy pool service and ditch the poor advice given at pool stores should get this app and then head over to TFP to learn the simplest and easiest approach to pool care!!

Amazing App


I love this app to track my pool. It’s simple and flexible. I allows me to select what chemicals I use, what strength, and what size or how many ounces. I can go in and log just the tests I do each day and the overview tells me what the latest reading is for each test and the last time I tested each item. One click on each item and it tells me what to do; E.g. it tells me exactly how much liquid bleach to add based on whether I use 6%, 10%, etc liquid chlorine. It tracks your test results, chemicals added, maintenance done, and even custom notes in a simple to use log (it even automatically adds my local weather information to each log item.)

Developer Response

I thank you greatly for your kind words and continued support!!!!

TFP is the absolute best!

Weather guy2

First off, as a new pool owner, I cannot thank TFP enough for the incredible website and awesome folks who run it! As a person who HATES to rely on others to get jobs done, the knowledge and insights on your site allowed me to not need our “pool boy” contractor who screwed things up from the start! The app is awesome! Yeah it has a couple bugs but what in this world is perfect anyway? Last summer it was pen and paper and ciphering out the numbers...this summer it’s phone, test kit and adult beverage and what do you know, a sparkling, clear blue pool!!! Now if only TFP could come up with a tree frog solution, those little gust love to night swim!! Thank you TFP!!

Developer Response

We thank you for your support!! If you will, can you email us at your bugs as we'd love to attempt to address them? We'll hold off on the adult beverages until they're corrected.......mostly anyways. ;D


79.9 MB
Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© TroubleFreePool
In-App Purchases
  1. Pool Math Premium Subscription $7.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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