Basinly: Pool & Spa Water Care

Pristn Technologies

In-app purchases

About this app

Basinly is the pool and spa companion that turns every water test into something you can act on. Log a test, and one simple number, the stability score, tells you at a glance whether to treat the water or leave it alone.

Built for chlorine pools, saltwater pools and hot tubs, indoors or out.

STABILITY SCORE
- One score from 0 to 100 that reads how steady your water is, built from every default parameter you test
- See exactly what is dragging it down and what to fix first
- A water balance (LSI) read on the side, so you know whether the water is scaling or corrosive
- Watch it climb as your water settles in

LOG TESTS IN SECONDS
- Free chlorine, pH, alkalinity, stabilizer (CYA), calcium hardness, salt, bromine and water temperature, from strips or a drop kit
- A fast keypad and one step per parameter; skip anything you did not measure
- Target ranges from industry guidance for chlorine pools, saltwater pools and hot tubs, every one of them editable
- Add your own custom parameters, or turn off the ones you never test

DOSING YOU CAN ACTUALLY FOLLOW
- Exact amounts sized to your water body's volume, aimed at the middle of the band, never the top
- Steps in a safe order, with wait and retest steps in between, so two chemicals never meet
- Chlorine targets that can follow your stabilizer reading in CYA-aware mode
- Log the treatment and the dose lands as a marker on the chart it moved

CHARTS THAT MAKE SENSE
- Every parameter trended over time against its target band, with your time in target
- Dose markers on the line, so cause sits right next to effect
- Spot drift early, before the water turns

STAY ON SCHEDULE
- Brushing, backwashing, filter changes and anything else, as recurring reminders with a date and a time
- Dosing follow-ups when a retest is due, and a nudge when a test is overdue
- Chemical stock that deducts itself when you log a dose, so you know before you run out mid-treatment

SEASON BY SEASON
- Opening and closing checklists, step by step, timed to your hemisphere
- Indoor pools get no sun, so Basinly starts them with the stabilizer target off; pools open all year skip the opening and closing ritual
- Photo notes for a stain, a gauge or cloudy water, worth more than a paragraph later

YOURS, EVERYWHERE
- Works offline at the pool and syncs on its own when you are back online
- Your whole history on every device
- Gallons or liters, Fahrenheit or Celsius, and six languages
- Export everything as CSV, any time

PERFECT FOR
- New owners who want to be told what to add, how much, and when
- Experienced owners who want clean data and clear trends
- Anyone tired of spreadsheets and a shoebox of test strips

Basinly is free to start, and dosing, reminders and maintenance are never behind a paywall. Basinly Pro adds unlimited pools and spas, full history with 90 day, 1 year and all time charts, and overlay charts with correlation hints. Pro is a yearly subscription with a 7 day free trial for new subscribers.

Download Basinly and know exactly what your water needs.

Terms of Use: https://www.pristntechnologies.com/en/basinly/termsofuse
Privacy Policy: https://www.pristntechnologies.com/en/basinly/privacypolicy

What’s new

Welcome to Basinly 1.0, the first release!

Log a water test and one stability score tells you whether to treat the water or leave it alone. Dosing steps sized to your exact volume, in the right order. Trends, task reminders, seasonal care, chemical stock and photos, for chlorine pools, saltwater pools and hot tubs. Works offline and syncs across your devices.