This update brings a new way to view your pool tests. You’re now able to snap a photo when you test your water - letting you see how your water clarity has improved over time or just giving you a reference for previous tests. Also includes stability improvements and under-the-hood refinements.

This update adds a Water Balance Gauge to your test results - a visual indicator that shows whether your water is corrosive, balanced, or scale forming at a glance (CSI). No more decoding raw numbers. Also includes stability improvements and under-the-hood refinements.

Thanks for using Simple Pool! This update includes stability improvements and under-the-hood refinements to keep things running smoothly.

A Faster, Cleaner Start • Now opens straight to your pool - no list screen, no extra tap. The app remembers where you left off and gets you right to your water chemistry. • Pool switching, settings, and bulletins are a tap away from the ellipsis menu in the top corner, keeping the main view focused on what matters: your pool. Switching to a different pool or spa is just a tap away as well. Weather-Aware Recommendations • SimplePool now checks local weather conditions when building your dosing recommendations. High UV days, recent rain, and temperature swings all affect your water chemistry - now the app accounts for them automatically. Redesigned Navigation • Pool switching is cleaner and faster. Your last pool opens instantly, and a single tap gets you to settings, bulletins, or another pool without getting lost in menus. Quick-Log from Recommendations • Long-press any recommendation to preview it and log the chemical addition in one step - no need to leave the screen. Rich Previews • Long-press on tests, chemical additions, and bulletins to peek at details before opening them. Plus the usual round of translation improvements and polish.

Bulletin Center A new in-app feed for seasonal guides, tips, and important notices no push notifications required. Check the flag icon to see what's new. Spring Pool Opening Guide A step-by-step walkthrough for opening your pool this season, including timing tips, equipment prep, and a built-in reminder so the first warm day doesn't sneak up on you. Also in this update • Input validation warnings and dosing caps to prevent over-treatment • Bug fixes for decimal input and cyanuric acid range display

Chemical Addition Tracking: Log every chemical you add to your pool. A new unified Activity History shows your tests and additions on one timeline so you can see exactly what you've done and when. Accurate Dosing for Your Products: Set your exact liquid chlorine concentration (6%–15%) and muriatic acid strength (14.5%–31.45%) in Settings. Recommendations match the product strengths you use. Redesigned Onboarding: A fresh setup experience with smooth animations guides new users through pool configuration step by step. Haptic Feedback: Subtle feedback confirm ideal chemistry, while stronger alerts flag issues that need attention. Persistent Safety Warnings: Important chemical handling cautions now stay visible in recommendation details. Bug Fixes: Fixed calcium hardness recommendations when changing pool structure, standardized salt ranges across all views, and improved pH method consistency.

Redesigned Settings Organized into sections (Preferences, Pool Chemistry, Account & Data) so you can find what you need faster. Test Reminders Tap a test reminder notification will now go straight to logging a new test. Community Find us on Instagram, Threads, and Reddit from Settings. Come say hi! Bug Fixes & Improvements • Set pool volume validation when adding or editing pools • Fixed CSI calculation accuracy for TDS handling • Fixed range indicator display logic • Improved camera availability checks

• Added Quick Test logging for fast pH, sanitizer, and alkalinity entries. • Added Shock Treatment mode with CYA-based targets, progress tracking, and completion checklist. • Added scheduled Test Reminders plus frequent reminders during shock treatment. • Added Chemical Effects Calculator to preview dosing impact before adding chemicals. • Improved chlorine/CYA safety guidance and refined muriatic acid dosing recommendations. • Expanded and improved localization quality across supported languages.

Adds Italian, Dutch and Portuguese language support.

• New onboarding wizard to help you get started • Now available in Spanish, French, and German • Choose between metric (liters) or imperial (gallons) units • Improved chemical recommendations aligned with industry guidelines • Better iPad layout and various refinements

New: Test Trends Charts • Visualize your pool chemistry over time with beautiful interactive charts! See trends for chlorine, pH, alkalinity, calcium, and more. Tap any data point to see exact values. Ideal ranges are highlighted so you can quickly spot when levels were outside the target zone. • Improved Test History • Browse your complete water test history with a redesigned interface. Free users can view the last 30 days of tests, while Pro users have access to their full testing history. Bug Fixes & Improvements • Fixed an issue with water balance (CSI) calculations that could show incorrect results • Improved app performance and stability

Minor update to allow users to easily restore purchases for new devices.

We’ve made our biggest update yet! We’ve rebuilt the app to support a wider range of pool types with more accurate and reliable recommendations to make balancing your water easier than ever. New Pool Types & Features - Salt Water Pool Optimization: Specialized calculations for salt water generator pools with proper CYA targets. - Bromine Pool Support: Now get full chemistry calculations and appropriate pH ranges for bromine pools. - Pool Structure Awareness: Protect your pool with fiberglass-specific calcium limits to prevent scaling damage. Smarter & Safer Recommendations - Improved Accuracy: Our new calculation engine provides better pH adjustments and more consistent recommendations. - Enhanced Safety: The app will now prevent unsafe chemical additions and warn you when your chlorine is too high. - Smarter Alerts: Get context-aware alerts that explain exactly why an adjustment is needed. Improved User Experience - Bug Fixes: Fixed navigation bugs and streamlined the app for a smoother experience. - Comprehensive Warnings: See chemical compatibility warnings before you add anything to your pool.

Allows editing of existing tests. Forget to add something? No sweat, easily update add or remove from tests you've already saved.

pH Adjustment Method Preference • Choose between Soda Ash and Borax for pH adjustments • Interactive comparison in recommendation details • Soda Ash raises pH and alkalinity, Borax primarily raises pH Improved Water Balance Warnings • CSI (Calcium Saturation Index) now shows as informational warnings • Clear explanations of corrosive vs scaling water conditions • No more duplicate chemical recommendations Enhanced User Experience • Interactive chemical strength adjustments in recommendations (chlorine, pH)

Updates to calculations.

Choose your preferred theme - Light, Dark, or follow your device's system setting Improved chemical calculations for more accurate pool maintenance Enhanced data management with better CloudKit syncing Adds Share in Settings