Aquavail: Hot Tub & Pool Care

About this app

Know exactly what to add to your water, every time. Set up your hot tub, pool, swim spa, or cold plunge with your exact specs, and Aquavail turns each test into step-by-step dosing built for your setup. HOW IT WORKS 1. Enter your test strip readings using simple tap controls 2. Report your water condition — clarity, foam, smell, color, deposits 3. Get step-by-step dosing calculated for your exact setup SMART CHEMISTRY Every recommendation is tailored to your sanitizer type. Chlorine, bromine, salt systems, mineral cartridges, ozone, and UV systems each get the right products, amounts, and targets. The app detects conflicting readings, flags high sanitizer levels before you soak, identifies chloramine buildup, and recommends oxidation instead of piling on more chemicals when your sanitizer is already adequate. SEQUENCED ACTIONS WITH TIMING Recommendations appear in the right order — alkalinity before pH, salt before chlorine — with explicit wait callouts between chemicals so you know when to add the next one and when to keep jets running. Steps that can be added together are flagged so you don't waste time waiting between independent doses. WATER STATUS AT A GLANCE Each test gets a clear status — Balanced, Fair, Adjust, or Urgent — based on both your chemical readings and water condition. One dangerous reading or severe water issue is enough to flag it, so nothing slips through. PHOSPHATE TESTING High phosphates silently consume your sanitizer and cause stubborn cloudy water. Aquavail supports phosphate testing (0-2500 ppb) and recommends treatment when levels exceed the 125 ppb threshold — a reading most apps ignore entirely. DRAIN AND FIRST-FILL GUIDANCE Track your drain schedule based on tub type, volume, and bather load. When it's time to refill, get pre-drain prep tips tailored to your tub type plus approximate first-fill chemistry that adjusts for your fill water source — city, well, softened, or RO each get different baseline assumptions so the dose recommendations match what you're actually starting from. AI-POWERED INSIGHTS (PRO) Aquavail Pro builds on your last test — it knows what was recommended, what improved, and what still needs attention. Get smarter, contextual recommendations every time, plus history trend analysis that spots patterns across weeks of data. AI is optional — toggle it off in Settings any time. One-time lifetime purchase, no subscriptions. Includes Family Sharing. FEATURES - Step-by-step dosing scaled to your water volume — from teaspoons for spas to pounds for pools - Sequenced actions with explicit wait timing between chemicals - Four-tier water status based on readings and water condition - Phosphate testing with treatment recommendations - Context-aware ideal ranges per sanitizer type and tub type - Water condition diagnostics with targeted guidance - Drain schedule tracking with pre-drain prep tips per tub type - First-fill chemistry that adjusts for your fill water source - Support for six sanitizer types and four water body types - Multiple tub management - Cold plunge support - AI references your previous test for smarter follow-up advice Built for hot tub owners, pool owners, and anyone who wants clean, balanced water without the chemistry degree.

Check your water without opening the app — Aquavail now works with Siri. - Ask "Hey Siri, what's my hot tub status?" to hear your latest readings, what's in or out of range, and when your next drain is due. - Log a water change by voice: tell Siri you drained or refilled and Aquavail updates your maintenance timeline. - Works across all your setups — Siri asks which one when you have more than one. - Behind-the-scenes reliability improvements.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 20, 2026 · 9:09 AM Free