Comparison

Pool Shark H2O Pro vs Pooldash

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

Head to head
About

Pool Shark H2O Pro

This app simplifies pool and spa record-keeping and maintenance with compliant logs. It offers instant water analysis and chemical dosage instructions to reduce liability and maintain clean water.

Highlights
  • Health Department Compliant Logs
  • Instant Water Analysis
  • Chemical Dosage Instructions
  • Bluetooth Integration with LaMotte WaterLink Spin Touch
  • Automated Testing Reminders
  • Location-Based Pool Search
  • Tamper-Proof Electronic Logs
Read full description

Simplify Pool and Spa record keeping and maintenance with 100% Health Department Compliant logs! Instant water analysis and chemical dosage instructions help reduce liability and keep water clean. Ideal for property managers, health clubs, hotels, water parks and resort pools and spas. Certified by the Council for the Model Aquatic Health Code as compliant with the CDC's MAHC guidelines. This app provides additional functionality to the Pool Shark H2o service.  Account or Free Trial required for login. 30 different recording options configurable by pool, including Chlorine, Bromine, pH, Alkalinity and more.. Instant dosage calculation and instructions makes it easy to keep the water clean and safe. ** Chemical Dosage Calculations - make it fast and easy to keep water clean. ** Integrates with LaMotte WaterLink Spin Touch systems through bluetooth making water chemical testing as easy as pushing a button. ** Reminders when pools need to be tested ** Smart Search - detects your location and provides details for the pool/spa closest to you, eliminating the need to search for pools. ** Notifications & Alerts keeps management and maintenance staff aware when pools need attention. ** Reduce Liability - Tamper proof electronic logs stamped with the users name, date and time, keep an accurate record for compliance and liability. ** Lower Costs - Chemical Dosage calculations done automatically for each pool saves time and money spent on excess chemicals. The patented Pool Shark H2O service supports ALL your pool logs and staff, making it fast and easy to stay in compliance with health code regulations.

About

Pooldash

This app helps pool professionals and beginners calculate and manage pool water chemistry. It provides precise chemical adjustments based on your test kit readings and allows for custom formula sharing. Supports various pool types and offers flexible unit conversions.

Highlights
  • Chemical reading input
  • Precise chemical adjustment calculations
  • Custom formula sharing system
  • Adjustable chlorine, bromine, salt, pH, alkalinity, hardness, and cyanuric acid
  • Flexible unit conversions (pounds, ounces, grams, liters, gallons, scoops)
  • Support for various pool types (chlorine, salt, bromine)
  • Save, email, and export water chemistry history
Features
Read full description

Thousands of professionals across the world already use pooldash to keep their pools blue... you should too! This app was built for professionals, but don't worry -- beginners can use it too! Just enter whatever chemical readings you prefer using any test kit you own, and pooldash will tell you exactly what chemicals to put into your pool. We, the creators of pooldash, don't know everything there is about water chemistry. That's why we created the "formula" system, so that people around the world can share their own custom calculators within pooldash. By default, you can adjust the chlorine, bromine, salt, pH, total alkalinity, calcium hardness, and even the cyanuric acid levels in all of your pools. You can even configure target ranges and chemicals used to treat the pools (see screenshots). Pool Doctor gives all results and explanations in pounds, ounces, grams, kilograms, liters, gallons, or even in the number of scoops (you can enter custom scoop sizes); and changing units is as easy as pressing a button! This app supports chlorine, salt-water, bromine, copper, and all sorts of swimming pools. You can save your history and email it, export it, or even ignore it if you want.

Screenshots

Pool Shark H2O Pro4 screens
Pooldash4 screens

Verdict

The call

The clearest difference is price: Pool Shark H2O Pro at Free against Pooldash's $19.99. Pool Shark H2O Pro also leads on review sentiment (100% vs 67%) and ratings volume (288 vs 11). Pooldash's advantage is update cadence (fortnightly vs every 5 months). On rating, ads, in-app purchases 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 Shark H2O Pro is free to download; Pooldash costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Pool Shark H2O Pro against 4.6 for Pooldash. That said, the two scores are not equally well evidenced: Pool Shark H2O Pro has 288 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 100% of Pool Shark H2O Pro's written reviews are positive against 67% of Pooldash's.

UpkeepUpdate frequency

Pool Shark H2O Pro ships an update every 5 months, Pooldash fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Pool Shark H2O Pro versus Pooldash: the parameters behind the verdict, then further details
ParameterPool Shark H2O ProPooldash
PriceFree — better$19.99
Rating4.8 (288 ratings) — better4.6 (11 ratings)
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings288 — better11
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size4 MB17 MB
Age rating4+12+
DeveloperPool Shark H2O, Inc.Gazzini Ventures

Customer experience

Pool Shark H2O Pro

All ratings219 ratings
Positive93.2%
Neutral1.8%
Negative5.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Pooldash

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

None

Pool Shark H2O Pro

No in-app purchases

None

Pooldash

No in-app purchases

Questions

Is Pool Shark H2O Pro free?
Pool Shark H2O Pro is free to download, with no in-app purchases.
Is Pooldash free?
Pooldash costs $19.99, with no in-app purchases.
Which has better reviews, Pool Shark H2O Pro or Pooldash?
Pool Shark H2O Pro is rated higher. Pool Shark H2O Pro averages 4.8 out of 5 from 288 ratings, while Pooldash averages 4.6 from 11 ratings.
Do Pool Shark H2O Pro or Pooldash have ads?
Neither Pool Shark H2O Pro nor Pooldash shows ads.
Which is updated more often, Pool Shark H2O Pro or Pooldash?
Pool Shark H2O Pro ships an update every 5 months, and Pooldash fortnightly. Most recently, Pool Shark H2O Pro was updated on November 6, 2026 and Pooldash on November 3, 2026.

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