Skip to content

Pool Doctor

by Gazzini Ventures

  • Utilities
  • Paid
  • Zombie
  • Small & simple · 85
View on the App Store
Rating
3.8
5 ratings · Australia storefront
Last update
Apr 24, 2023
Version 3.51
Size
7 MB
Category
Utilities
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Thousands of professionals across the world already use Pool Doctor to keep their pools blue... you should too!

This app is not for total beginners -- It is a powerful digital tool for professionals or enthusiasts.

But don't worry! Instructions are constantly scrolling across the screen. Just enter whatever chemical readings you prefer using any test kit you own, and Pool Doctor will tell you exactly what chemicals to put into your pool and why.

With Pool Doctor, 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 the ideal 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 regular, salt-water, or even bromine pools.

Pool Doctor now saves basic reading and treatment records for all of your pools!

Pool Doctor only shows you readings that apply to your pool type, so there is no unnecessary confusion!

Pool Doctor will now calculate the Langelier Index automatically if you take all of the required readings!

Pool Doctor now includes a shock calculator! Just enter the free and total chlorine levels, and Pool Doctor will automatically calculate how much of your preferred shock chemical is necessary to bring your pool to breakpoint chlorination.

What’s new

Release notes for the latest version, as written by the developer.

v3.51

Includes support for Borax to raise the pH

Includes support for 68% calcium hypochlorite

Rank history

Daily position in the Turks & Caicos Islands charts. #1 is at the top.

Best rank
#9
Current rank
#10
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

85/100

Small & simple

  • Developer size100% · 25

    Developer: 1 app on the charts

  • Audience size100% · 20

    Ratings: 5

  • App size100% · 10

    Size: 7 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof50% · 30

    Best rank #9, 2 countries

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 3.51LatestReleased Apr 24, 2023