Why this app exists

I bought a house with a pool and quickly realized I had no idea what I was doing. Test strips gave me numbers. The pool store told me to buy things. YouTube said five different things. I was spending money, dumping chemicals, and still ending up with cloudy water.

So I started tracking my readings in a spreadsheet. Once I could see trends, everything clicked. I learned that order matters — fix alkalinity before pH. I learned that CYA creeps up silently when you use tablets. I learned that LSI is the one number that actually tells you if your water is balanced.

I built PoolChem Tracker to do what my spreadsheet couldn't: calculate exact doses, score my water's health, and show me trends — all without needing a chemistry degree or an internet connection.

Who it's for

PoolChem Tracker is for pool owners who want to understand their water, not just throw chemicals at it. Whether you're brand new to pool care or you've been maintaining a pool for years, the app gives you the tools to make better decisions with less waste.

It works with chlorine pools, salt water generators, and everything in between. You don't need to know what LSI stands for to use it — the app does the math and tells you what to do.

Why it's private

Your pool chemistry data is nobody's business but yours. PoolChem Tracker stores everything on your device. There's no account to create, no cloud to sync to, no analytics tracking your usage. The app works completely offline.

This isn't a marketing decision — it's a design principle. Your data stays on your device because that's where it belongs.

What we believe

🎯 Solve the problem

Every feature exists to help you fix or understand something about your water. No bloat, no social features, no gamification.

🔒 Privacy by default

No accounts, no cloud, no tracking. Your readings stay on your device. We can't see your data because we never collect it.

💰 Honest pricing

Free to start, $4.99 one-time to unlock everything. No subscriptions, no ads, no in-app currency. Pay once, keep it forever.

🧪 Accuracy matters

LSI uses the full formula with CYA correction, polynomial temperature factors, and salt-adjusted TDS. Dosing is calculated for your exact pool volume.

Get in touch

Questions, feedback, or feature requests — I read every email.

Ready to stop guessing?

Download free on iPhone and iPad.

Download on the App Store