Meet Poollog — Pool water log, offline

Lifestyle

Poollog

Pool water log, offline

What Poollog does

Poollog is the calm, private water-care logbook for backyard pool owners. Record every test strip or liquid-kit reading — free chlorine, pH, total alkalinity, and CYA — and see at a glance whether each parameter is inside its ideal range. Based on your pool volume and readings, Poollog surfaces plain-English dosing notes so you know what to add, roughly how much, and why, without hunting through forum threads or back-of-bag charts.

Log every chemical addition with date, product, amount, and reason, then revisit the history whenever a pattern turns murky. Seasonal checklists walk you through spring opening and fall closing step by step so nothing gets skipped.

No account. No subscription needed to log. No internet required, ever. Your water-chemistry records live only on your device.

• Record FC, pH, TA, CYA with target-range status badges • Plain-English dosing guidance notes per reading • Chemical dose log with product, amount, and reason • Weekly trend charts to catch drift early • Spring-open and fall-close checklists, fully customizable • Supports multiple pools, chlorine or salt-water

A look inside

Tap any screenshot to open the full-resolution version.

What's inside

• Reading log — Record FC, pH, TA, and CYA after each test; each parameter shows a colored in-range/out-of-range badge against configurable target ranges.
• Dosing notes — After saving a reading, Poollog generates plain-English notes on which chemicals to consider and approximate direction of adjustment, based on pool volume and current values.
• Chemical dose log — Record every chemical addition — product name, amount, unit, and reason — with date so you can audit what was added and when.
• Trend charts — Line charts for each parameter over the past 7 or 30 days with a shaded ideal-range band to surface drift before it becomes a problem.
• Seasonal checklists — Step-by-step spring-opening and fall-closing checklists with pre-populated items users can check off, edit, or add to each season.

Why we built it

Pool owners must hold multiple test readings in their head, do mental or back-of-envelope dosing math for each chemical, and separately track what they actually added — a process prone to over- or under-dosing. Existing apps either lock trend history behind a subscription, require an account, or focus purely on chemic…

What makes it different

A fully offline, no-account pool log that pairs persistent reading history and chemical dose tracking with plain-English dosing notes and seasonal open/close checklists — unlike Pool Math (TFP) which has no maintenance task log, Pool Care by Swim University which also lacks task tracking, and Pooli which requires a cl…

Who it's for

Hobbyists who want a tool that respects their time, their gear, and their offline life.

In one line: Pool water log, offline

Try it

See the Pool water log, offline for the full feature list, the info table, and support links.

Use Poollog, found a bug, or have a feature request? Comments are open below — anonymous is fine.