Keep your pool clear & swimmable

Algae Later tells you exactly what to add and when to test — no more guessing, no more green water. Log a reading, get the precise dose, done.

Free · set up your pool in under a minute.

A balanced pool is a cheaper pool

Guessing is expensive. Getting it right the first time isn't.

Stop wasting chemicals

Add the exact amount your pool needs — not a splash-and-hope guess that burns through product.

Never rescue a green pool

A neglected pool can cost €100–300 in shock chemicals and a week out of the water. Catch the drift early.

Skip the pool service

Do it yourself in seconds and keep the €80–150 a visit — the app tells you exactly what to do.

And right now, Algae Later is completely free.

How it works

A simple loop that keeps the water right.

Measure

Dip a test strip and log your pH and chlorine — takes seconds.

Adjust

Get the exact dose to add, scaled to your pool and your products.

Swim

When it's balanced, dive in — and we nudge you when it's time to re-test.

Free pool calculators

No account needed — try them right now.

Ready to wave goodbye to green water?

Set up your pool