Dosely turns a water test into the precise chemical dose for your pool or hot tub — sized to your exact water volume. On-device, no account, any brand — nothing leaves your iPhone.
Download on the App StoreFree to start · No account · Works fully offline
Built for pool and hot tub owners who are tired of guessing with test strips and chemical-brand apps.
Enter your readings and Dosely calculates the precise amount to add for your water volume — in oz, lb, gallons, grams or liters. No chemistry degree required.
One app for every kind of backyard water. Chlorine, saltwater, and bromine systems — pools and spas, each with the right target ranges.
No sign-up, no cloud, no ads, no data selling. Everything stays on your iPhone and works fully offline — even at the far end of the yard.
Test, dose, done.
Enter your pool or hot tub's volume — or use the built-in calculator for rectangle, round, oval or kidney shapes.
Punch in chlorine, pH, alkalinity, CYA, calcium or salt with big, wet-hand-friendly controls right at the water's edge.
Dosely tells you what to add and how much, in the right order, with wait times. Track trends and get reminders to test, shock and clean.
Start free with one pool or hot tub. Upgrade when you want unlimited water, full history, and trend charts.
Turn a water test into the exact dose for your pool or hot tub — right on your iPhone, no account, any brand.
Download on the App StoreDosing is guidance only — always verify with your own test kit and follow the product label. Dosely is not a substitute for professional water management.