# Aquavail: Hot Tub & Pool Care — Spa Water Chemistry & Dosing > AI-powered pool and spa water chemistry management with personalized dosing. (iPhone/iPad app by Epiqara LLC.) - Source: https://appshunter.io/ios/app/aquavail-hot-tub-and-pool-care/id6761553259 (this page in markdown: same URL + `.md`) - Developer: [Epiqara LLC](https://appshunter.io/developer/1817735691) - Category: Lifestyle, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.6 · 5 MB - Languages: American English - Released: 2026-04-07 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/aquavail-hot-tub-and-pool-care/id6761553259/reviews.md ## What is Aquavail? 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, and RO water 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. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Personalized water chemistry recommendations - Step-by-step dosing instructions - Support for multiple sanitizer types - Water condition diagnostics - Phosphate testing and treatment - Drain and first-fill guidance ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Aquavail Pro Lifetime | $9.99 | one-time | ## Frequently asked questions about Aquavail ### What types of water bodies does Aquavail support? Aquavail supports hot tubs, swimming pools, swim spas, and cold plunge pools. It is designed to handle various water volumes, from small spas to large pools. ### How does Aquavail handle different sanitizer types? Aquavail provides tailored recommendations for chlorine, bromine, salt systems, mineral cartridges, ozone, and UV systems. Each sanitizer type receives specific product, amount, and target guidance. ### Does Aquavail offer offline functionality? The provided data does not specify offline functionality. However, its core features involve inputting test readings and receiving calculated recommendations, which may require an internet connection. ### What is the pricing for Aquavail Pro? Aquavail Pro is available as a one-time lifetime purchase, with no ongoing subscriptions required. This purchase also includes Family Sharing capabilities. ### How often is Aquavail updated? The latest version of Aquavail was released on June 2, 2026, indicating recent development activity. The app is generally updated to improve features and address user needs. ### What is the age rating for Aquavail? Aquavail has an age rating of 4+, making it suitable for a wide range of users. It is available on both iPhone and iPad devices. ### Does Aquavail have ads? No, Aquavail does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features. ### How does Aquavail handle phosphate testing? Aquavail supports phosphate testing within a range of 0-2500 ppb. It recommends treatment when levels exceed the 125 ppb threshold, a feature often overlooked by other applications. ## Version history (last 5 releases) ### 1.3.1 — 2026-08-31 Water Trends on the dashboard, and Siri now answers. - Water Trends now appears on your dashboard once a tub has two or more tests, no more hunting for it - Fixed the Analyze button appearing when AI recommendations were turned off in Settings - Icons no longer overlap their labels at large text sizes, and the main action on each screen stays reachable without scrolling - Siri now answers. Ask "Hey Siri, is my water balanced in Aquavail" for your latest reading, or log a drain and refill by voice, without opening the app. - The prompt to rate Aquavail now appears after you save a test, rather than each time you open an older result - Rate and Share links added to Settings ### 1.3.0 — 2026-07-08 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. ### 1.2.1 — 2026-06-02 - More reliable AI recommendations and history analysis - Behind-the-scenes improvements ### 1.2 — 2026-04-29 - Much clearer one page app layout with access to tub list and settings in the toolbar at the top. - Recommendations now appear in chemistry order with explicit wait timing between chemicals — alkalinity before pH, salt before chlorine - New First-Fill Chemistry on drain refills, with dosing adjusted for your fill water source (city, well, softened, or RO) - Pre-drain prep tips tailored to your tub type - Smarter dosing units across the board — teaspoons for spas, pounds for pools - AI auto-regenerates the moment you upgrade to Pro, and is now optional via a Settings toggle - iPad layout improvements for comfortable reading on wider screens - Onboarding polish with a clearer notification pre-prompt - Conservative chemistry thresholds and many small fixes throughout ### 1.1.1 — 2026-04-16 Improved purchase reliability — Pro status now persists correctly between app launches. Updated support email format with cleaner diagnostics. FAQ link navigates directly to the FAQ section. Refined Settings layout with consistent icons across Support and Legal sections. ## More apps by Epiqara LLC - [Epiqara: Photo to Video Maker](https://appshunter.io/ios/app/epiqara-photo-to-video-maker/id6746662463) - [Qaravo: Gen Z Slang Translator](https://appshunter.io/ios/app/qaravo-gen-z-slang-translator/id6754645881) - [Avodek: Private Browser + AI](https://appshunter.io/ios/app/avodek-private-browser-plus-ai/id6757726074) - [Loggnit: AI Calorie & Life Log](https://appshunter.io/ios/app/loggnit-ai-calorie-and-life-log/id6758579449) - [ShotPost: Screenshot Mockups](https://appshunter.io/ios/app/shotpost-screenshot-mockups/id6759847633) - [Founding Minds: Constitution](https://appshunter.io/ios/app/founding-minds-constitution/id6760193159) All apps by Epiqara LLC: https://appshunter.io/developer/1817735691 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*