Comparison

Pool Math by TroubleFreePool vs Power

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

Power

Monitor battery health in real-time, displaying voltage, current, and power. Get instant alerts for critical conditions like over-temperature or under-voltage. Compare individual cell voltages and manage your battery's on/off status with ease.

Highlights
  • Real-time parameter display (voltage, current, power)
  • Battery on/off control
  • Single battery voltage and alarm status
  • Cell voltage difference comparison
  • Real-time critical condition alarms
  • Warning event logging
Features
Read full description

1. Display real-time voltage, current, power, and other parameter values in the form of instrument panels and numbers 2. Turn the connected battery on and off with the touch of a button 3. Display the real-time voltage and alarm status of all single batteries. If the reported parameters trigger the alarm value or protection value, an alarm will be prompted 4. Data comparison of the battery cell voltage difference - maximum voltage cell and minimum voltage cell 5. Real-time alarm for over temperature, short circuit, over voltage, and under voltage 6. Record the warnings that occur at each moment

Screenshots

Pool Math by TroubleFreePool4 screens
Power4 screens

Verdict

The call

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against Power's 0%. Pool Math by TroubleFreePool also leads on rating (3.6 vs 1.5) and ratings volume (287 vs 2). Power's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 15.0). On price, 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. Power asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pool Math by TroubleFreePool holds the better App Store score, 3.6 against 1.5. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 287 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of Pool Math by TroubleFreePool's written reviews are positive against 0% of Power's.

UpkeepUpdate frequency

Pool Math by TroubleFreePool ships an update fortnightly, Power every 2 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Pool Math by TroubleFreePool versus Power: the parameters behind the verdict, then further details
ParameterPool Math by TroubleFreePoolPower
PriceFreeFree
Rating3.6 (287 ratings) — better1.5 (2 ratings)
Positive reviews63.3% of reviews — better0.0% of reviews
Number of ratings287 — better2
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size314 MB11 MB
Age rating4+9+
DeveloperTroubleFreePoolPower Sonic Europe Limited

Customer experience

Pool Math by TroubleFreePool

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

Power

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Power

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

Power

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 Power free?
Power is free to download, with no in-app purchases.
Which has better reviews, Pool Math by TroubleFreePool or Power?
Pool Math by TroubleFreePool is rated higher. Pool Math by TroubleFreePool averages 3.6 out of 5 from 287 ratings, while Power averages 1.5 from 2 ratings.
Do Pool Math by TroubleFreePool or Power have ads?
Neither Pool Math by TroubleFreePool nor Power shows ads.
Which is updated more often, Pool Math by TroubleFreePool or Power?
Pool Math by TroubleFreePool ships an update fortnightly, and Power every 2 months. Most recently, Pool Math by TroubleFreePool was updated on November 4, 2026 and Power on November 3, 2026.

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