Pool Math by TFP

In-app purchases
3.2
366 reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Digital Purchases
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About this app

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 trips to the pool store.

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
• Bleach Price Calculator - Find the best deals on bleach easily
• Summary page with test and chemical log insights and totals
• 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
Updated on
May 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.2
352 reviews
Bill Krahmer
September 29, 2024
This app used to be useful for free, now basically requires a subscription to use. The message prompting you to subscribe explains that the subscription is for unlimited log storage... Ok, don't let me store unlimited logs and let me use it locally only for free. Let me clear my old data if I want (I've looked and see no option for this). But no, that is not an option.
27 people found this review helpful
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TroubleFreePool
September 29, 2024
Thanks for the feedback. We actually have not changed the “free” functionality and have always allowed a single log, so it would be great to better understand what changes you are seeing from the previous version in this area? poolmath@troublefreepool.com
Rick Gaffney
May 7, 2026
The information provided is useful, but testing and recording tests is very difficult and confusing. The app allows you to set levels of chlorine you wish. Then when you test, it tells you you're out of range even if you're in the range you set. And that's if you figure out how to record the test results properly. No instructions at all about actually imputing data. Don't waste your time this app is too frustrating. 2 stars because it's free.
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TroubleFreePool
May 9, 2026
Would be great if you can reach out to support to help us better understand what you mean more specifically. We are always open to improving the app and making it easier to use.
M T
August 31, 2024
Great app! Just like its name, it does your pool math for you, making maintenance super easy. The free version doesn't let you keep logs, but I don't see a need for that. I just check levels regularly and if anything is out of range, pool math tells me how to fix it. If I had problems with algae or couldn't keep chemistry stable, maybe I would pay to add logs. I think I'd just use a notebook! Free version is all I need :) Thanks you!
7 people found this review helpful
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What’s new

• NEW: Track swimmer loads as logs on your timeline
• Visual polish with better Android edge to edge support
• General stability improvements and bug fixes
Content rating
Everyone
Digital Purchases
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App support

About the developer
TROUBLEFREEPOOL
T123.LEE@GMAIL.COM
608 Fawn Ct Wake Forest, NC 27587 United States
+1 740-632-3790