Comparison

Pool Math by TroubleFreePool vs Swimming Pool Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pool Math by TroubleFreePool

Easily manage your swimming pool's water chemistry by tracking key levels like chlorine and pH. This app calculates the precise amounts of chemicals needed to maintain clear, algae-free water, offering a cost-effective alternative to pool store advice.

Highlights
  • Chemical level calculators (pH, Chlorine, Alkalinity, etc.)
  • Track pool maintenance tasks
  • Log chemical additions
  • Weather condition tracking
  • Chemical addition effect calculations
  • Bleach price comparison
  • Data backup and export
Features
Read full description

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 • Summary page to see an overview of test results and chemical additions • 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: http://poolmathapp.com/privacy/

About

Swimming Pool Calculator

Easily calculate necessary pool chemicals and troubleshoot common water issues like green or cloudy water. This app provides daily and weekly maintenance routines to keep your pool water crystal clear and ready for swimming.

Highlights
  • Chemical calculation
  • Water issue troubleshooting
  • Daily maintenance routines
  • Weekly maintenance routines
  • Crystal clear water maintenance
Features
Currently charting
Read full description

In this simple and innovative app you will be able to calculate all the necessary chemicals. In addition to being able to solve any inconvenience, such as the water turning green or cloudy. And as if that were not enough, you will see all the actions that you must carry out daily and weekly so that the water is always crystal clear and in perfect condition for bathing. Terms and Conditions https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Pool Math by TroubleFreePool4 screens
Swimming Pool Calculator4 screens

Verdict

The call

The clearest difference is price: Pool Math by TroubleFreePool at Free against Swimming Pool Calculator's $4.99. Pool Math by TroubleFreePool also leads on update cadence (fortnightly vs every 2 months) and review sentiment (63% vs 49%). Swimming Pool Calculator's advantage is rating (3.9 vs 3.7) and chart position (#197 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Pool Math by TroubleFreePool is free to download; Swimming Pool Calculator costs $4.99 up front. Pool Math by TroubleFreePool sells 1 in-app purchase, starting at $7.99 per year and Swimming Pool Calculator sells 4 in-app purchases, starting at $4.49 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Swimming Pool Calculator holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 272 ratings behind it against 40, so its average is the more settled of the two. Written reviews complicate that: 63% of Pool Math by TroubleFreePool's written reviews are positive against 49% of Swimming Pool Calculator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Pool Math by TroubleFreePool ships an update fortnightly, Swimming Pool Calculator every 2 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 5 level
Pool Math by TroubleFreePool versus Swimming Pool Calculator: the parameters behind the verdict, then further details
ParameterPool Math by TroubleFreePoolSwimming Pool Calculator
PriceFree — better$4.99
Rating3.7 (272 ratings)3.9 (40 ratings) — better
Positive reviews63.4% of reviews — better48.6% of reviews
Number of ratings272 — better40
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank—#197 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size314 MB116 MB
Age rating4+4+
DeveloperTroubleFreePoolFernando Montero

Customer experience

Pool Math by TroubleFreePool

All ratings262 ratings
Positive66.0%
Neutral7.3%
Negative26.7%
Written reviews123 reviews
Positive63.4%
Neutral11.4%
Negative25.2%

Swimming Pool Calculator

All ratings40 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews138 reviews
Positive48.6%
Neutral4.3%
Negative47.1%

Bugs and requests

Pool Math by TroubleFreePool

Reported bugs

4 issues
  • Subscription issues and inability to restore purchases
  • App crashes and freezes on certain actions
  • Incorrect chemical recommendations and calculations
  • Disappearing historical data after updates

Requested features

5 requests
  • Custom target ranges and alerts
  • Ability to log non-standard chemical additions
  • Export options for data analysis
  • Apple Watch integration
  • Improved user guidance and on-boarding

Swimming Pool Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Pool Math by TroubleFreePool

Subscriptions1
  • Pool Math Premium Subscription$7.991 Year
4 purchases

Swimming Pool Calculator

Subscriptions4
  • Suscripción Premium$4.493 Months
  • Suscripción Gold$6.993 Months
  • Suscripción Platinum$7.991 Month
Show 1 more
  • Suscripción Adamantium2 variants$49.991 Month

Questions

Is Pool Math by TroubleFreePool free?
Pool Math by TroubleFreePool is free to download, with in-app purchases available.
Is Swimming Pool Calculator free?
Swimming Pool Calculator costs $4.99, and also offers in-app purchases.
Which has better reviews, Pool Math by TroubleFreePool or Swimming Pool Calculator?
Swimming Pool Calculator is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while Swimming Pool Calculator averages 3.9 from 40 ratings.
Do Pool Math by TroubleFreePool or Swimming Pool Calculator have ads?
Neither Pool Math by TroubleFreePool nor Swimming Pool Calculator shows ads.
Which is updated more often, Pool Math by TroubleFreePool or Swimming Pool Calculator?
Pool Math by TroubleFreePool ships an update fortnightly, and Swimming Pool Calculator every 2 months. Most recently, Pool Math by TroubleFreePool was updated on September 22, 2026 and Swimming Pool Calculator on September 19, 2026.

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