Comparison

Pool Math by TroubleFreePool vs Connect & Correct

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

Connect & Correct

Report non-emergency local issues like potholes or graffiti directly to your local government. Pinpoint locations using GPS, upload photos, and track the response to your service requests. This free app offers an efficient way to communicate community concerns.

Highlights
  • Report non-emergency local issues
  • Pinpoint issue location with GPS
  • Upload photos with service requests
  • Track Township response
  • Submit service requests on-the-go
Features
Read full description

Connect with Middletown Township, NJ to help correct our community’s concerns. This free app empowers residents to report non-emergency local issues on-the-go. If you see potholes, playground graffiti, a lost pet, a damaged crosswalk, or other matters that need attention, simply open the app which uses your phone’s GPS to pinpoint the location and submit a service request. The app also allows you to upload photos and easily track the Township’s response to the issue. Connect & Correct is the most efficient way to report a concern directly to your local government. If you need to report an emergency, always call 911.

Screenshots

Pool Math by TroubleFreePool4 screens
Connect & Correct4 screens

Verdict

The call

The clearest difference is rating: Connect & Correct at 5.0 against Pool Math by TroubleFreePool's 3.7. Connect & Correct also leads on in-app purchases (none vs 1). Pool Math by TroubleFreePool's advantage is ratings volume (272 vs 1) and update cadence (fortnightly vs every 2 months). On price and ads 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

Both are free to download. Pool Math by TroubleFreePool sells 1 in-app purchase, starting at $7.99 per year. Connect & Correct asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Connect & Correct holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 272 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Pool Math by TroubleFreePool ships an update fortnightly, Connect & Correct every 2 months. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

Scorecard7 real differences · 3 level
Pool Math by TroubleFreePool versus Connect & Correct: the parameters behind the verdict, then further details
ParameterPool Math by TroubleFreePoolConnect & Correct
PriceFreeFree
Rating3.7 (272 ratings)5.0 (1 ratings) — better
Positive reviews63.4% of reviews—
Number of ratings272 — better1
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size314 MB145 MB
Age rating4+12+
DeveloperTroubleFreePoolTownship of Middletown

Customer experience

Pool Math by TroubleFreePool

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

Connect & Correct

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Connect & Correct

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
None

Connect & Correct

No in-app purchases

Questions

Is Pool Math by TroubleFreePool free?
Pool Math by TroubleFreePool is free to download, with in-app purchases available.
Is Connect & Correct free?
Connect & Correct is free to download, with no in-app purchases.
Which has better reviews, Pool Math by TroubleFreePool or Connect & Correct?
Connect & Correct is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while Connect & Correct averages 5.0 from 1 ratings.
Do Pool Math by TroubleFreePool or Connect & Correct have ads?
Neither Pool Math by TroubleFreePool nor Connect & Correct shows ads.
Which is updated more often, Pool Math by TroubleFreePool or Connect & Correct?
Pool Math by TroubleFreePool ships an update fortnightly, and Connect & Correct every 2 months. Most recently, Pool Math by TroubleFreePool was updated on October 16, 2026 and Connect & Correct on September 26, 2026.

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