Pool Water Calculator vs Intermatic Optimizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Remote pool and spa control
- Energy usage monitoring
- Multi-pool management
- Advanced iOS interface
- Anytime, anywhere access
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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
Verdict
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
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.
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.
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.
| Parameter | Pool Water Calculator | Intermatic Optimizer |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.6 (94 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 94 — better | 2 |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #70 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 30 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Ingenio Productions LLC | Intermatic LLC |
Customer experience
Pool Water Calculator
Intermatic Optimizer
In-app purchases
Pool Water Calculator
No in-app purchases
Intermatic Optimizer
No in-app purchases
Questions
Is Pool Water Calculator free?
Is Intermatic Optimizer free?
Which has better reviews, Pool Water Calculator or Intermatic Optimizer?
Do Pool Water Calculator or Intermatic Optimizer have ads?
Which is updated more often, Pool Water Calculator or Intermatic Optimizer?
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