Most pool apps are designed for pool service companies or try to sell you a subscription. Pool Clarity is built for the person standing next to their pool with a test strip, wondering what to do next.
After testing dozens of pool apps, here's what actually matters: it needs to know your pool. A 12,000-gallon screened pool in Florida needs completely different treatment than a 25,000-gallon outdoor pool in Colorado. Generic calculators that don't account for your pool's specifics give you generic advice.
It also needs to speak plain English. Telling someone their "LSI is -0.3 and the water is slightly aggressive" isn't helpful if they don't know what LSI means. Saying "your pH is a bit high at 7.9, which means your chlorine is only working at about 65% effectiveness, so add 14 oz of muriatic acid" is actionable.
And it should be affordable. You already spend enough on pool chemicals. You shouldn't need a $10/month subscription just to figure out how much to add.
You set up a pool profile once with your pool's size, type, sanitizer, location, and environment. Then every time you test your water, you enter your readings and Pool Clarity tells you exactly what to add, how much, and in what order. The dosing amounts are calculated for your specific pool volume, not a generic "per 10,000 gallons" chart.
The free tier includes the full chemistry calculator with personalized dosing, water assessments in plain English, and your last 5 readings saved. That's enough for most pool owners to keep their water clear all season.
Pro ($14.99, one-time, lifetime) adds trend charts so you can see patterns over time, unlimited reading history, a service report card if you have a pool company, a maintenance schedule, and a cost tracker.
Enter your test strip readings and get personalized dosing instructions in under a minute.
Get Started FreeMost pool chemistry apps fall into two camps: over-simplified calculators that give generic advice, or complex tools designed for pool professionals. The simplified ones don't account for your specific pool, so their dosing is approximate at best. The professional ones assume you already understand water chemistry terminology and just need a calculation tool.
Pool Clarity sits in the middle. It does the same calculations a pool professional would do, but explains everything in language any pool owner can understand. And because it knows your pool's specifics, the dosing is accurate for your situation, not a one-size-fits-all estimate.
There's also no subscription. Most competing apps charge $5-10 per month. Pool Clarity's free tier covers the core calculator forever, and the Pro upgrade is a one-time $14.99 for lifetime access.