Taking the guesswork out of pool care with Baracuda’s Smart Dose app.
At a glance
Tonic designed and built Smart Dose, an iOS and Android app that helps pool owners test their water, understand the results and dose the right products. It calculates the dose from a pool profile and a guided strip test, recommends products and shows where to buy them.
- Client:
- Baracuda (Zodiac / Fluidra)
- Project:
- Pool Testing Mobile App (iOS & Android)
- Industry:
- Home and outdoor
UI & UX Design, Mobile Application Development, iOS & Android, Front-end Development, API Integrations, Art Direction & Design

The brief
Design and build a mobile app that helps pool owners test their water, understand the results and know exactly which products to use, and how much.

The challenge: pool chemistry is confusing
Keeping a pool clean, clear and healthy comes down to getting the water chemistry right, and most pool owners find that hard.
Reading test strips, working out what the numbers mean and calculating the right dose are where people get stuck, buy the wrong product or overdose. Baracuda wanted a simple tool that takes the guesswork out of chemical dosing, and points pool owners to the right products along the way.

The strategy: test, select, measure and dose
We designed the app around three simple steps: test the water, select the chemicals, then measure and dose.
A pool profile captures the details that change the maths, like volume, surface type and whether it’s a chlorine or salt pool. A guided water test then walks people through using a strip, with colour-matched pads for free chlorine, total chlorine, alkalinity and pH.

The solution: an iOS and Android dosing app
Smart Dose is a mobile app for iOS and Android that does the calculations from the data entered, shows clear results against ideal ranges, and recommends the products and dosage needed to treat the pool.
Tips and hints help with common problems like a green pool, and a store locator shows where to buy. A confusing chore becomes a few taps, so pool owners can keep their water balanced with confidence.

Test the water
A guided test walks pool owners through using a strip, matching each pad’s colour for free chlorine, total chlorine, alkalinity and pH.

Get the right dose
The app does the maths from the pool profile and test results, then recommends the products and exact amounts needed.

Tips and where to buy
Step-by-step tips help with common problems like a green pool, and a store locator shows where to buy.
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