# HotTub&Pool

> Utilities

Canonical page: [https://chrome-stats.com/d/id358719601](https://chrome-stats.com/d/id358719601)

## Overview

- **ID:** `id358719601`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Pixelwand Ltd
- **Category:** Utilities
- **Rating:** 3.50 / 5 (13 ratings)
- **Version:** 2.0.0
- **Last updated:** 2016-09-02
- **First published:** 2010-03-02
- **Size:** 7.66 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/hottub-pool/id358719601)
- **Website:** [http://www.pixelwand.com](http://www.pixelwand.com/)

## 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

## Rankings

- #332,389 — Overall

## Review summary

Users praise the app as a quick dosimetry reference and note improvements in the latest version, including data saving for up to three pools. However, recurring issues include Celsius-only temperature display with no Fahrenheit option and a limited temperature range, frequent compatibility and stability problems on newer iOS devices, and inaccurate or crash-prone dosing calculations. Some reviewers question reliability, with several labeling it a scam. Missing features such as Bromine support and other chemistries also frustrate users. Overall usefulness depends on whether the app runs reliably on their device.

### Pros

- Provides a quick reference for pool chemistry/dosimetry for users with basic knowledge.
- Latest version updates improve visuals and usability, and can save data for up to three pools.
- Generally useful and capable when it runs, with positive overall feedback.

### Cons

- Temperature support is limited to Celsius with no Fahrenheit option and a restricted temperature range.
- Compatibility and stability issues on newer devices/iOS versions, including blank screens and poor support.
- Dosing calculations are reported as inaccurate or crash-prone, leading to unreliable results.
- Some reviewers question reliability, with several labeling it a scam or non-functional.
- Missing features such as Bromine support and other chemistries.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id358719601)