Comparison

ControlMySpa vs Pool Math by TroubleFreePool

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

Head to head
About

ControlMySpa

Remotely manage your hot tub's temperature, lighting, and schedules from your smartphone or tablet. Receive instant alerts for potential issues, ensuring peace of mind even when you're away.

Highlights
  • Remote temperature control
  • Lighting management
  • Schedule setup
  • Push notification alerts
  • Problem detection
Features
Read full description

The ControlMySpa app connects you to your hot tub from any smartphone or tablet. Control the temperature, lights, set up schedules and more. Receive instant push notification alerts when a potential problem occurs so you and your dealer know about it, even while you're away.

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/

Screenshots

ControlMySpa4 screens
Pool Math by TroubleFreePool4 screens

Verdict

The call

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against ControlMySpa's 10%. Pool Math by TroubleFreePool also leads on update cadence (fortnightly vs every 5 weeks). ControlMySpa's advantage is in-app purchases (none vs 1) and rating (3.9 vs 3.6). On price, ratings volume, ads 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

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

ReceptionRating · Positive reviews · Number of ratings

ControlMySpa holds the better App Store score, 3.9 against 3.6. Both are backed by a comparable volume of ratings — 618 and 287 respectively. Written reviews complicate that: 10% of ControlMySpa's written reviews are positive against 63% of Pool Math by TroubleFreePool's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ControlMySpa ships an update every 5 weeks, Pool Math by TroubleFreePool fortnightly. The most recent releases landed on November 13, 2026 and November 11, 2026 respectively.

Scorecard5 real differences · 5 level
ControlMySpa versus Pool Math by TroubleFreePool: the parameters behind the verdict, then further details
ParameterControlMySpaPool Math by TroubleFreePool
PriceFreeFree
Rating3.9 (618 ratings) — better3.6 (287 ratings)
Positive reviews10.3% of reviews63.3% of reviews — better
Number of ratings618 — better287
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size12 MB314 MB
Age rating4+4+
DeveloperBalboa Water GroupTroubleFreePool

Customer experience

ControlMySpa

All ratings589 ratings
Positive69.8%
Neutral7.5%
Negative22.8%
Written reviews290 reviews
Positive10.3%
Neutral8.6%
Negative81.0%

Pool Math by TroubleFreePool

All ratings262 ratings
Positive66.0%
Neutral7.3%
Negative26.7%
Written reviews128 reviews
Positive63.3%
Neutral10.9%
Negative25.8%

User reviews

ControlMySpa

From 618 App Store ratings

What we love

  • 🚀 Convenient remote control
  • ⏱️ Scheduling capabilities
  • 💰 Potential energy savings
  • 👍 Intuitive interface

Room to improve

  • 🐛 Frequent disconnections
  • ⏱️ Slow response times
  • 🔌 Unreliable connectivity
  • 📚 Lack of documentation
  • 🤖 Poor customer support

Pool Math by TroubleFreePool

From 287 App Store ratings

What we love

  • 💎 Excellent for maintaining a clean, balanced pool
  • 🔍 Comprehensive tracking of test results and chemical additions
  • 🧠 Helpful recommendations for chemical adjustments
  • ⚙️ Useful features like SLAM mode and timeline
  • 🤖 Automatic weather data logging

Room to improve

  • 🐛 Issues with data syncing and backup
  • 🤔 Unintuitive interface and navigation
  • 💰 Subscription model and lack of one-time purchase
  • 🚫 Limited support for non-chlorine sanitizers and spa-specific options
  • 🔄 Bugs with chemical addition logging and target value retention

Bugs and requests

ControlMySpa

Reported bugs

4 issues
  • Inconsistent temperature display
  • Inability to save settings
  • Login issues and lost credentials
  • Crashes and freezes after updates

Requested features

4 requests
  • More granular temperature control
  • Ability to control lights and jets
  • Improved scheduling options
  • Push notifications for status changes

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

In-app purchases

None

ControlMySpa

No in-app purchases

1 purchases

Pool Math by TroubleFreePool

Subscriptions1
  • Pool Math Premium Subscription$7.991 Year

Questions

Is ControlMySpa free?
ControlMySpa is free to download, with no in-app purchases.
Is Pool Math by TroubleFreePool free?
Pool Math by TroubleFreePool is free to download, with in-app purchases available.
Which has better reviews, ControlMySpa or Pool Math by TroubleFreePool?
ControlMySpa is rated higher. ControlMySpa averages 3.9 out of 5 from 618 ratings, while Pool Math by TroubleFreePool averages 3.6 from 287 ratings.
Do ControlMySpa or Pool Math by TroubleFreePool have ads?
Neither ControlMySpa nor Pool Math by TroubleFreePool shows ads.
Which is updated more often, ControlMySpa or Pool Math by TroubleFreePool?
ControlMySpa ships an update every 5 weeks, and Pool Math by TroubleFreePool fortnightly. Most recently, ControlMySpa was updated on November 13, 2026 and Pool Math by TroubleFreePool on November 11, 2026.

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