Comparison

Pool Water Calculator vs Pool Math Calculator

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

Head to head
About

Pool Water Calculator

This app helps you precisely balance and maintain your pool or spa water chemistry. It offers a chemistry calculator, pool volume measurement, and detailed data logging with visual trend analysis. Get tailored recommendations and manage multiple water profiles with ease.

Highlights
  • Chemistry calculator for precise chemical dosages
  • Pool volume calculator
  • Data logging for test results and additions
  • Visual trend graphs for water chemistry
  • Personalized chemical recommendations
  • Manage multiple pool/spa profiles
  • Broad chemical support
Features
Read full description

Pool Water Calculator is an all-in-one pool and spa management suite, providing everything you need to quickly balance and maintain pool and spa water chemistry. Quickly Balance and Maintain Your Pool Chemistry Chemistry Calculator – Enter current levels and instantly see precise chemical dosages for nearly any concentration (1% to 100%) using our advanced pool calculator. Pool Volume Calculator – Find the exact volume of your pool, hot tub, or Jacuzzi, ensuring accurate chemical dosing every time. Track and Visualize Your Water Chemistry Data Logging – Easily save and edit water test results, chemical additions, and maintenance events. Flexible Tracking – Record multiple parameters, including pH, free, combined, and total chlorine, bromine, total alkalinity, calcium hardness, CYA, borate, ORP, salt, TDS, nitrate, phosphate, water temperature, CSI, LSI, and turbidity. Reactive Graphs – Spot trends, identify issues early, and keep your water chemistry on target with visual insights. Customized to Your Unique Pool or Spa Tailored Recommendations – Enter your liner type and water profile to get personalized targets for your pool or jacuzzi. Multiple Profiles – Manage up to five different pools or spas, each with unique chemical levels, treatments, and notes. Dosing Guide – Understand each parameter’s role in pool chemistry, plus usage tips for the most common pool chemicals. Broad Chemical Support Balance your pool or spa with a wide range of standard and customizable chemicals, including: - Disinfection & Chlorine Options (Calcium Hypochlorite, Sodium Hypochlorite/Bleach, Dichlor, Trichlor, Lithium Hypochlorite, Bromine Granules) - pH Adjusters (Sodium Carbonate, Hydrochloric/Muriatic Acid, Sulfuric Acid, Sodium Hydroxide, Sodium Bisulfate/Dry Acid, Sodium Thiosulfate) - Alkalinity & Hardness (Sodium Bicarbonate/Baking Soda, Sodium Carbonate/Washing Soda, Calcium Chloride, Calcium Chloride Dihydrate) - Stabilizers & Specialty Chemicals (Cyanuric Acid, Pool Salt, Borax Tetrahydrate, Borax Pentahydrate, Boric Acid, Boron Sodium Oxide Tetrahydrate, PR-10,000) Seamless Backups and Multi-Language Support iCloud Integration – Safely back up and restore profiles, water test history, and settings. Metric & U.S. Units – Switch between units for total flexibility. Language Support – Available in English, Spanish, and French. Stop second-guessing your pool chemistry. Download Pool Water Calculator today for stress-free pool and spa management with accurate dosing, precise water balancing, and insightful tracking—all in one intuitive app.

About

Pool Math Calculator

This app simplifies pool water chemistry by calculating precise chemical dosages for balanced water. It helps estimate the impact of adding various chemicals and determines pool volume from basic measurements. Designed for practical, everyday pool maintenance, it keeps essential information readily accessible.

Highlights
  • Chemical dosing calculations
  • Water balance targets
  • Chemical addition effect estimation
  • Pool volume calculation
  • Pool settings tracking
  • CSI target checks
Features
Read full description

Pool Calculator helps you keep pool water balanced without guesswork. Use it to calculate chemical dosing, check water balance targets, estimate the effect of adding a chemical, and calculate pool volume from basic dimensions. The app is built for day-to-day pool care and keeps the most important numbers easy to read. What you can do: - Calculate dosing for free chlorine, pH, alkalinity, calcium hardness, stabilizer, borates, and salt - See suggested free chlorine targets based on CYA - Estimate the effect of adding bleach, acid, borax, washing soda, salt, and other common pool chemicals - Calculate pool volume for rectangular, round, and oval pools - Track pool-specific settings like volume, temperature, units, and surface type - Check CSI targets for better water balance decisions Pool Calculator is designed to stay fast, practical, and easy to use whether you are managing your own backyard pool or checking numbers before treatment.

Screenshots

Pool Water Calculator4 screens
Pool Math Calculator4 screens

Verdict

The call

The clearest difference is price: Pool Math Calculator at Free against Pool Water Calculator's $4.99. Pool Math Calculator also leads on rating (4.8 vs 4.6). Pool Water Calculator's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 2 months). On ratings volume, ads, 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 Calculator is free to download; Pool Water Calculator costs $4.99 up front. Pool Math Calculator sells 1 one-off in-app purchase. Pool Water Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pool Math Calculator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 94 and 43 respectively.

UpkeepUpdate frequency

Pool Water Calculator ships an update fortnightly, Pool Math Calculator every 2 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

Scorecard5 real differences · 5 level
Pool Water Calculator versus Pool Math Calculator: the parameters behind the verdict, then further details
ParameterPool Water CalculatorPool Math Calculator
Price$4.99Free — better
Rating4.6 (94 ratings)4.8 (43 ratings) — better
Positive reviews76.7% of reviews—
Number of ratings94 — better43
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size30 MB4 MB
Age rating4+4+
DeveloperIngenio Productions LLCSergii Nesterenko

Customer experience

Pool Water Calculator

All ratings94 ratings
Positive90.4%
Neutral4.3%
Negative5.3%
Written reviews30 reviews
Positive76.7%
Neutral6.7%
Negative16.7%

Pool Math Calculator

All ratings43 ratings
Positive95.3%
Neutral4.7%
Negative0.0%

In-app purchases

None

Pool Water Calculator

No in-app purchases

1 purchases

Pool Math Calculator

One-time1
  • Unlock Pro$12.99

Questions

Is Pool Water Calculator free?
Pool Water Calculator costs $4.99, with no in-app purchases.
Is Pool Math Calculator free?
Pool Math Calculator is free to download, with in-app purchases available.
Which has better reviews, Pool Water Calculator or Pool Math Calculator?
Pool Math Calculator is rated higher. Pool Water Calculator averages 4.6 out of 5 from 94 ratings, while Pool Math Calculator averages 4.8 from 43 ratings.
Do Pool Water Calculator or Pool Math Calculator have ads?
Neither Pool Water Calculator nor Pool Math Calculator shows ads.
Which is updated more often, Pool Water Calculator or Pool Math Calculator?
Pool Water Calculator ships an update fortnightly, and Pool Math Calculator every 2 months. Most recently, Pool Water Calculator was updated on September 24, 2026 and Pool Math Calculator on September 8, 2026.

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