Comparison

Pool Water Calculator vs Intermatic Optimizer

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
Currently charting
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

Intermatic Optimizer

Control your pool and spa automation system remotely from your mobile device. Monitor and track energy usage for your pool equipment on a daily, weekly, or monthly basis. Manage multiple pools and spas with an intuitive interface.

Highlights
  • Remote pool and spa control
  • Energy usage monitoring
  • Multi-pool management
  • Advanced iOS interface
  • Anytime, anywhere access
Features
Read full description

Your Intermatic® Optimizer system is a powerful pool and spa automation control system that offers anytime, anywhere remote access to control your pool and spa. From your iPhone®, you can remotely monitor and control one or more systems, create up to 12 schedules, and save pictures of your equipment, receipts, and water chemistry reports in the apps convenient Wallet feature. As the Pool owner, you can share access with others (family, service personnel, etc.).

Screenshots

Pool Water Calculator4 screens
Intermatic Optimizer4 screens

Verdict

The call

The clearest difference is price: Intermatic Optimizer at Free against Pool Water Calculator's $4.99. Intermatic Optimizer also leads on rating (5.0 vs 4.6). Pool Water Calculator's advantage is ratings volume (94 vs 2) and chart position (#70 vs unranked). On update cadence, ads, in-app purchases and monetization model 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

Intermatic Optimizer is free to download; Pool Water Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Intermatic Optimizer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Pool Water Calculator has 94 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Pool Water Calculator ships an update fortnightly, Intermatic Optimizer every 9 days. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 6 level
Pool Water Calculator versus Intermatic Optimizer: the parameters behind the verdict, then further details
ParameterPool Water CalculatorIntermatic Optimizer
Price$4.99Free — better
Rating4.6 (94 ratings)5.0 (2 ratings) — better
Positive reviews76.7% of reviews—
Number of ratings94 — better2
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#70 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.6
Further details — not scored
Size30 MB80 MB
Age rating4+4+
DeveloperIngenio Productions LLCIntermatic LLC

Customer experience

Pool Water Calculator

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

Intermatic Optimizer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pool Water Calculator

No in-app purchases

None

Intermatic Optimizer

No in-app purchases

Questions

Is Pool Water Calculator free?
Pool Water Calculator costs $4.99, with no in-app purchases.
Is Intermatic Optimizer free?
Intermatic Optimizer is free to download, with no in-app purchases.
Which has better reviews, Pool Water Calculator or Intermatic Optimizer?
Intermatic Optimizer is rated higher. Pool Water Calculator averages 4.6 out of 5 from 94 ratings, while Intermatic Optimizer averages 5.0 from 2 ratings.
Do Pool Water Calculator or Intermatic Optimizer have ads?
Neither Pool Water Calculator nor Intermatic Optimizer shows ads.
Which is updated more often, Pool Water Calculator or Intermatic Optimizer?
Pool Water Calculator ships an update fortnightly, and Intermatic Optimizer every 9 days. Most recently, Pool Water Calculator was updated on October 15, 2026 and Intermatic Optimizer on September 28, 2026.

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