Comparison

HotTub&Pool vs Pooli

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

Head to head
About

HotTub&Pool

This utility app helps hot tub, spa, and pool owners accurately calculate chemical dosages for water balancing. It supports calculations for alkalinity, pH, sanitizer, and stabilizer, along with water balancing features like the Langelier Saturation Index (LSI).

Highlights
  • Chemical dosage calculation
  • Water balancing (LSI)
  • Pool volume calculator
  • Flow rate calculator
  • Turnover calculator
  • Filter size calculator
Features
Read full description

Calculator for hot tub, spa and pool owners to take the guesswork out of how much of each chemical you should be adding. The calculator will correctly work out doses for Calcium, raising and lowering alkalinity and pH, and adding the correct amounts of sanitizer and stabiliser. Also includes water balancing feature to allow you to calculate your pools or hot tubs Langelier Saturation Index (LSI) to help maintain an efficient and smooth running system. Common Pool Calculators • Pool Volume Calculator • Flow Rate Calculator • Turnover Calculator • Minimum Filter Size Calculator • Total Dynamic Head (measured) Calculator

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

HotTub&Pool4 screens
Pooli4 screens

Verdict

The call

The clearest difference is review sentiment: Pooli at 87% against HotTub&Pool's 24%. Pooli also leads on rating (4.6 vs 3.5) and update cadence (every 3 weeks vs every 7 months). HotTub&Pool's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 15.5). On price, 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

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 3.5. That said, the two scores are not equally well evidenced: Pooli has 370 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 24% of HotTub&Pool's written reviews are positive against 87% of Pooli's.

UpkeepUpdate frequency

HotTub&Pool ships an update every 7 months, Pooli every 3 weeks. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
HotTub&Pool versus Pooli: the parameters behind the verdict, then further details
ParameterHotTub&PoolPooli
PriceFreeFree
Rating3.5 (13 ratings)4.6 (370 ratings) — better
Positive reviews23.8% of reviews86.7% of reviews — better
Number of ratings13370 — better
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.5
Further details — not scored
Size8 MB122 MB
Age rating4+4+
DeveloperPixelwand LtdPooli, Inc.

Customer experience

HotTub&Pool

All ratings13 ratings
Positive61.5%
Neutral7.7%
Negative30.8%
Written reviews21 reviews
Positive23.8%
Neutral0.0%
Negative76.2%

Pooli

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

Bugs and requests

HotTub&Pool

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

HotTub&Pool

No in-app purchases

None

Pooli

No in-app purchases

Questions

Is HotTub&Pool free?
HotTub&Pool 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, HotTub&Pool or Pooli?
Pooli is rated higher. HotTub&Pool averages 3.5 out of 5 from 13 ratings, while Pooli averages 4.6 from 370 ratings.
Do HotTub&Pool or Pooli have ads?
Neither HotTub&Pool nor Pooli shows ads.
Which is updated more often, HotTub&Pool or Pooli?
HotTub&Pool ships an update every 7 months, and Pooli every 3 weeks. Most recently, HotTub&Pool was updated on October 3, 2026 and Pooli on October 13, 2026.

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