Pool Otter: Test, Balance, Log

Pool Otter: Test, Balance, Log

Water Chemistry Calculator

0 ratings
Free
In-App Purchases

Rating summary

Details

Released
November 9, 2026
Updated
November 11, 2026

Features

Pool Otter: Test, Balance, Log screenshot #1 for iPhone
Pool Otter: Test, Balance, Log screenshot #2 for iPhone
Pool Otter: Test, Balance, Log screenshot #3 for iPhone
Pool Otter: Test, Balance, Log screenshot #4 for iPhone
Pool Otter: Test, Balance, Log screenshot #5 for iPhone
Pool Otter: Test, Balance, Log screenshot #6 for iPhone
Pool Otter: Test, Balance, Log screenshot #7 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Know exactly what to add. Type a reading, or tap + for each drop, and Pool Otter turns your water test into the exact amount of each chemical for your pool and your products. For backyard pools, spas and pros with a whole route, from $7.99 a year. EASY INPUT Log a test one reading at a time, with your target right there. The dose appears the moment you type a number. Using a drop kit? Tap + for each drop and Pool Otter does the ppm. Pick your test kit, or scan the barcode on the bottle, and you only see the readings your kit measures. EXACT DOSES Liquid chlorine, cal-hypo, dichlor, acid, soda ash, baking soda, calcium chloride, stabilizer or salt, sized to your pool's volume and your product's strength. pH doses account for alkalinity, stabilizer, chlorine and borates. Fixes come numbered in the order to add them. Round to cups or ounces you can actually pour, tap Log, and Undo is right there. FOR HOMEOWNERS Home tells you what needs fixing in one line each, with today's weather at your pool. Get a reminder when it's time to test or add a routine chemical, and see when chores like brushing or cleaning the filter are due. Volume calculator included. FOR POOL PROS Unlimited pools and spas on Pro, each with its own size, location and maintenance schedule. Switch pools in a tap, see which ones need attention, and share a report for any period or a link to a pool's page (no app or sign-in needed to view it). YOUR TARGETS, NOT OURS Start from the Taylor test kit's ideal ranges or CDC/ANSI, each with spa values, and change any minimum, ideal or maximum. Free chlorine can follow your stabilizer level automatically. THE WHOLE STORY OF YOUR WATER History lists tests, chemicals, maintenance and notes by day, with the weather. Trends show every reading over 30 days, 6 months or a year with your target band shaded, an arrow for where it's heading, and what to do about it. BRING YOUR HISTORY Import your test history from other pool apps' CSV exports or any spreadsheet in seconds; duplicates are skipped. Export everything to CSV or a full backup at any time, on any plan. BACKUP AND SYNC Optional account: back up and use Pool Otter on more than one device. Works fully offline. PLANS Every new user gets 14 days of Pro free, with no purchase or card. After that, choose: • Basic, $7.99 a year: one pool and one spa, with everything above. • Pro, $24.99 a year: everything in Basic, plus unlimited pools and spas. If you don't subscribe, your data stays viewable and exportable; adding new entries needs a plan. Prices in USD; local prices are shown in the App Store. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the end of the period. Manage or cancel it in your Apple Account settings. Doses are estimates to help you balance your water. Always follow the directions on the chemical's label, never mix chemicals, and retest before swimming. Terms of Use: https://bayoubrowns.com/pool-otter/terms/ Privacy Policy: https://bayoubrowns.com/pool-otter/privacy/ Made in the USA by Bayou Browns LLC. No ads, no tracking.
Show more
+2

What's New in Pool Otter

1.1.0

November 11, 2026

- Fixes come numbered in the order to add them. - Round doses to cups or ounces you can pour; Undo after every log. - Trend arrows and 30-day, 6-month and 1-year charts. - Reminders for routine chemicals, and maintenance chores on Home. - Share a link to your pool's page, or a report for any period. - Shock mode, a new look, and simpler settings.

More
2

Subscriptions & In-App Purchases

Pro

Unlimited pools and spas

$24.991 Year
How to cancel Pool Otter subscription ⁉️

Developer apps