Pool Clarity
Pool chemistry in plain English, with dosing advice built for your exact pool.
Most pool owners can read a test strip but still have no idea what to do next. The strip says your free chlorine is 1.0 and your pH is 7.8, and then what? Pool Clarity answers that question. You enter the numbers from your test kit and it tells you exactly what to add, how much, and in what order, written the way a helpful neighbor would explain it rather than a chemistry textbook.
It is free, it runs on your iPhone, and it is built for the person standing next to their own pool on a Saturday morning trying to avoid a $90 service call. There is no jargon to decode and no upsell to a pro tier hiding the answer you actually need.
What it does
Dosing advice for your exact pool
Pool Clarity uses your pool volume and water type to calculate real dosing amounts, not generic ranges. Saltwater pools get salt-cell guidance first, the way they should.
Plain-English explanations
Every recommendation comes with a short, readable reason. You learn why your water drifts the way it does, so the numbers stop being a mystery.
Track your levels over time
Log each test and watch your chlorine, pH, alkalinity, and stabilizer trend across the season so you can catch problems before the water turns.
Who it is for
- Homeowners who maintain their own in-ground or above-ground pool
- New pool owners who feel lost the first season
- Anyone tired of guessing or overpaying a pool service
Frequently asked questions
Is Pool Clarity really free?
Yes. The full app is free with no subscription. It is supported by optional links to recommended supplies on Amazon.
Does it work for saltwater pools?
Yes. For saltwater pools it recommends adjusting your salt cell output first before reaching for liquid chlorine, which is how saltwater chemistry actually works.
Do I need a special test kit?
No. Use whatever test strips or liquid kit you already own. You just type in the readings and Pool Clarity does the math.
Will it tell me how much chlorine to add?
Yes. That is the core of the app. Enter your current reading and pool size and it gives you a specific dose, not a vague range.
Related reading
Try Pool Clarity
Pool chemistry in plain English, with dosing advice built for your exact pool.
Go to Pool Clarity