Comparison

H2OCHK Hayward vs Pooli

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

Head to head
About

H2OCHK Hayward

Easily measure key water quality parameters for pools and spas, including pH, chlorine, and alkalinity. Get fast, accurate results and receive personalized chemical dosage recommendations for optimal water balance.

Highlights
  • Measures 5 water quality parameters
  • Accurate and fast results
  • Recommends chemical dosages
  • Supports pool and spa water
  • Helps achieve perfect water balance
Read full description

This app allows any pool or spa user to quickly and accurately measure 5 important water quality parameters: pH, Chlorine, Total Alkalinity, Total Hardness and Cyanuric Acid. No guesswork, just fast accurate results every time. Based on pool size, App will recommend chemical dosages for perfect water balance.

About

Pooli

This app helps you maintain a clean and safe pool or spa with smart testing, tailored advice, and customized task lists. It offers advanced AI for instant feedback, problem resolution guidance, and comprehensive sanitization support. Track multiple pools, manage inventory, and even collaborate with others for effortless pool care.

Highlights
  • Smart water testing with manual entry or strip scanning
  • Interactive Calcite Saturation Index (CSI) tool
  • Tailored reports and expert maintenance advice
  • Advanced AI for instant pool questions
  • Customized task lists and reminders
  • Multi-pool and spa management
  • Chemical inventory tracking with restock reminders
Features
Read full description

Embark on your pool care journey with Pooli, the comprehensive, user-friendly app that transforms every user into a pool care expert. With a range of high-value features, Pooli ensures safe, clean, and enjoyable swimming all year round. Top Features: 1. Smart Testing: Use your favorite water test method and open the Pooli app. Manually enter the results or join the Pool Club to scan your test strip with your phone's camera. 2. Interactive CSI Tool: Utilize our interactive Calcite Saturation Index (CSI) tool for understanding and preventing potential issues. 3. Tailored Reports & Advice: Receive detailed pool water quality reports and expert maintenance advice catered to your pool size and type. 4. Advanced AI: Get instant feedback on your pool questions with our cutting-edge AI system. 5. Customized Task Lists: Enjoy tailored task lists, reminders, and user-defined water chemistry targets specific to your pool or spa needs. 6. Multi-Pool Management: Effortlessly track and manage multiple pools or spas. 7. Problem Resolution: Get guidance for identifying and resolving pool issues. 8. Comprehensive Sanitization Support: Support for all primary sanitization methods, complete with custom targets, dosages, and recommendations. 9. Analysis Tools: Use our tools to graph and analyze chemical levels and usage over time, calculate actual chemical demand, and optimize shock/sanitization schedules. 10. Chemical Atlas & Shop: Access our integrated atlas of chemicals and solutions, along with a shop for discounted testing and equipment. 11. Collaborative Tools: Team up with service providers or family members on pool maintenance. 12. Record Keeping: Maintain complete records of pool water tests and maintenance tasks and equipment readings. 13. Inventory Tracking and Sharing: Keep track of your chemical, equipment, and supply inventory with restock reminders. 14. Customizable Profiles: Share your pool and spa information through customizable user profiles. 15. Cost Calculators: Track your savings on chemicals and equipment, and monitor water consumption and potential leaks. 16. Gamified Experience: Have fun with pool care through our monthly high scores and achievement badges. 17. Offline Functionality: Access key features and information even without an internet connection. How Pooli Works: Using Pooli is as easy as a few taps on your screen. Simply open the app, use a test your pool water, and input the results manually or via Pooli's simple and accurate test strip scanning technology. Pooli then provides you with a detailed report and expert advice on maintaining your pool. You'll get customized task lists and reminders based on your pool's specific needs. Pooli even offers a collaborative feature to work with service providers or family members on pool maintenance. With Pooli, pool care becomes a breeze! Experience peace of mind knowing you're maintaining safe and clean water. Dive into a better pool care experience with Pooli today!

Screenshots

H2OCHK Hayward4 screens
Pooli4 screens

Verdict

The call

The clearest difference is review sentiment: Pooli at 87% against H2OCHK Hayward's 18%. Pooli also leads on rating (4.6 vs 3.0) and ads (none vs shown). H2OCHK Hayward's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (13.6 vs 16.0). On price, update cadence, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Pooli holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Pooli has 369 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 18% of H2OCHK Hayward's written reviews are positive against 87% of Pooli's.

UpkeepUpdate frequency

H2OCHK Hayward ships an update monthly, Pooli every 2 weeks. The most recent releases landed on October 10, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 4 level
H2OCHK Hayward versus Pooli: the parameters behind the verdict, then further details
ParameterH2OCHK HaywardPooli
PriceFreeFree
Rating3.0 (4 ratings)4.6 (369 ratings) — better
Positive reviews18.2% of reviews86.7% of reviews — better
Number of ratings4369 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.6 — better16.0
Further details — not scored
Size17 MB124 MB
Age rating4+4+
DeveloperDigital Concepts of Missouri, Inc.Pooli, Inc.

Customer experience

H2OCHK Hayward

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews11 reviews
Positive18.2%
Neutral0.0%
Negative81.8%

Pooli

All ratings370 ratings
Positive90.3%
Neutral3.0%
Negative6.8%
Written reviews150 reviews
Positive86.7%
Neutral3.3%
Negative10.0%

Bugs and requests

H2OCHK Hayward

Not enough reviews yet to summarise bugs or requests.

Pooli

Reported bugs

2 issues
  • Inventory management issues
  • Reminders triggering at inconvenient times

Requested features

4 requests
  • Ability to add equipment details and service history
  • Integration with calendar apps for reminders
  • More customization options for ideal water levels
  • Improved test strip scanning accuracy

In-app purchases

None

H2OCHK Hayward

No in-app purchases

None

Pooli

No in-app purchases

Questions

Is H2OCHK Hayward free?
H2OCHK Hayward is free to download, with no in-app purchases.
Is Pooli free?
Pooli is free to download, with no in-app purchases.
Which has better reviews, H2OCHK Hayward or Pooli?
Pooli is rated higher. H2OCHK Hayward averages 3.0 out of 5 from 4 ratings, while Pooli averages 4.6 from 369 ratings.
Do H2OCHK Hayward or Pooli have ads?
H2OCHK Hayward shows ads; Pooli does not.
Which is updated more often, H2OCHK Hayward or Pooli?
H2OCHK Hayward ships an update monthly, and Pooli every 2 weeks. Most recently, H2OCHK Hayward was updated on October 10, 2026 and Pooli on October 26, 2026.

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