Aquavail: Hot Tub & Pool Care
Spa Water Chemistry & Dosing
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Perfect water without the guesswork. Enter your test readings for dosing built to your exact tub — and now just ask Siri for your water status anytime.
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.
Ratings & Reviews
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.
The developer, Epiqara LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Epiqara LLC
- Size
- 4.7 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Aquavail Pro Lifetime $9.99
- Copyright
- © 2026 Epiqara LLC
