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PoolFu - Pool & Spa Chemistryv1.1.0

Released July 30, 2026Major

iOS

What changed

  • New featureAdded supplemental sanitizer support for UV, AOP, and nanobubble systems in spas with adjusted guidance.
  • New featureUpdated spa chlorine dosing to a 4 ppm target with adjusted dose amounts.
  • New featureAdded CSV and full backup export functionality to the history calendar.
  • UXRedesigned product filtering by category, brand, and region with active filter tags.
  • ContentExpanded chemical database to 26 entries and added 172 Lawrason's products for Canada.
  • RetentionUpdated retest reminder logic for pools and hot tubs following chemical adjustments.
  • MonetizationAdded a Pro Data screen to manage, export, and resubscribe after a Pro subscription ends.
  • UXImplemented haptic feedback for saving tests, logging treatments, and finishing service visits.
  • UXImproved UI elements including the Test Water keyboard, Settings screen, and shared card resolution.
  • LocalizationEnhanced search to respect filters and find products sold in other regions.

Original release notes

What's new in PoolFu

Supplemental sanitizer support for spas
- New Supplemental Sanitizer setting for spas with a UV, active oxygen (AOP), or nanobubble system
- Chlorine guidance adjusts to the lower level these systems run: a 3 ppm target, with 2 to 3 ppm counting as acceptable between soaks
- Bromine spas adjust from 5 ppm to 4 ppm
- Safety limits are unchanged: below 2 ppm chlorine is still critical, and bromine keeps its 4 ppm minimum before anyone gets in

Spa chlorine dosing
- Spas now dose to a 4 ppm target, the middle of the 3 to 5 ppm ideal range
- Dose amounts for chlorine spas change slightly

Export from the calendar
- Added Export Data to the history calendar for your own pool and spa
- Exports test readings and treatments as CSV spreadsheets, or a full PoolFu backup

Product filtering
- Products now filter by category, brand or common chemical, and region from a single Filters button
- Active filters show as tags you can tap to remove
- Search now respects your filters, and finds products sold in other regions
- Common chemicals expanded to 26 entries, including calcium hypochlorite shock and liquid chlorine
- Added 172 Lawrason's products including Aqua, for Canada

Retest reminders
- Pools now wait 4 hours after adjusting pH with acid, and until the next morning after a shock
- Hot tubs keep their faster 1 hour and 6 hour reminders
- Spas with a supplemental sanitizer are reminded to test every 3 days

Pro data after cancellation
- Pro features stop when a Pro subscription ends, but nothing you built with Pro is deleted
- Added a Your Pro Data screen showing what is stored, with a backup or spreadsheet of each customer, and a button to resubscribe and pick up where you left off

Other improvements
- Added haptic feedback when you save a test, log a treatment, unlock an achievement, or finish a service visit
- Added a Done button to the keyboard on the Test Water screen
- Cleaned up the Settings screen
- Shared reading and achievement cards render at higher resolution

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