Comparison

Pool Water Calculator vs Vigorplus TPMS

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

Vigorplus TPMS

Features
Read full description

Vigorplus TPMS, when combined with the user's smartphone, allows for real-time updates and warning messages to be displayed without the need for extra cables or monitors. This provides a safe and comfortable environment for the driver. When tire sensors relay abnormal data, the app detects the abnormal status, uses voice/audio alerts to notify the driver, and displays the abnormal data and tire location on the app. The features are as follows: 1. Ease of Use: No cables or extra monitor devices are required, ensuring a safe and comfortable driving experience. 2. Real-time Monitoring: Check tire pressure and temperatures in real-time. Receive both visual and audible alerts if one or more tires' pressure falls out of the preset range. 3. Sensor ID Learning: Supports auto, manual learning, and QR code scanning for sensor identification. 4. Tire Rotation: Manual sensor locations upon tire rotation. 5. Unit Options: Choose from psi, kPa, or Bar for tire pressure units and ℉ or ℃ for temperature units. Configure temperature and pressure limits as needed. 6. Background Mode: Use the app in the background. 7. Voice Dongle Reminder: A separate USB dongle is available for use instead of the user's smartphone.

Screenshots

Pool Water Calculator4 screens
Vigorplus TPMS4 screens

Verdict

The call

The clearest difference is price: Vigorplus TPMS at Free against Pool Water Calculator's $4.99. Pool Water Calculator's advantage is update cadence (fortnightly vs every 9 months). On ads, in-app purchases, device support and iOS requirement 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

Vigorplus TPMS 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.

UpkeepUpdate frequency

Pool Water Calculator ships an update fortnightly, Vigorplus TPMS every 9 months. The most recent releases landed on September 24, 2026 and May 19, 2026 respectively.

Scorecard2 real differences · 8 level
Pool Water Calculator versus Vigorplus TPMS: the parameters behind the verdict, then further details
ParameterPool Water CalculatorVigorplus TPMS
Price$4.99Free — better
Rating4.6 (94 ratings) — better—
Positive reviews76.7% of reviews—
Number of ratings94 — better—
Update frequencyFortnightly — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size30 MB39 MB
Age rating4+4+
DeveloperIngenio Productions LLCJET Opto

In-app purchases

None

Pool Water Calculator

No in-app purchases

None

Vigorplus TPMS

No in-app purchases

Questions

Is Pool Water Calculator free?
Pool Water Calculator costs $4.99, with no in-app purchases.
Is Vigorplus TPMS free?
Vigorplus TPMS is free to download, with no in-app purchases.
Do Pool Water Calculator or Vigorplus TPMS have ads?
Neither Pool Water Calculator nor Vigorplus TPMS shows ads.
Which is updated more often, Pool Water Calculator or Vigorplus TPMS?
Pool Water Calculator ships an update fortnightly, and Vigorplus TPMS every 9 months. Most recently, Pool Water Calculator was updated on September 24, 2026 and Vigorplus TPMS on May 19, 2026.

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