# Spalyzer Pool & Spa — Photo test, get dosing > Photo test, get dosing (iPhone/iPad app by Timo Klaeui.) - Source: https://appshunter.io/ios/app/spalyzer-pool-and-spa/id6766178699 (this page in markdown: same URL + `.md`) - Developer: [Timo Klaeui](https://appshunter.io/developer/1840616365) - Category: Lifestyle, Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.1 · 42 MB - Languages: American English, French (France), German (Germany), Italian, Brazilian Portuguese, European Spanish - Released: 2026-05-21 - Data updated: 2026-08-07 - User reviews in markdown: https://appshunter.io/ios/app/spalyzer-pool-and-spa/id6766178699/reviews.md ## What is Spalyzer Pool & Spa? Spalyzer makes pool and spa care easier. Photograph a supported water tester or test strip. Spalyzer reads chlorine, pH and alkalinity, then calculates clear dosing steps for your pool, hot tub or swim spa. What Spalyzer does • Reads water test values from a photo • Calculates dosing amounts based on pool volume and current readings • Supports chlorine, pH and alkalinity • Lets you save your own pool products in a product library • Gives clear step-by-step recommendations • Warns about critical readings and unsafe combinations • Keeps recent measurements with history and trends Who it is for Spalyzer is built for private pool, hot tub and swim spa owners who want a simpler way to interpret water test results and calculate dosing amounts. Why Spalyzer? Many pool apps start with manual input. Spalyzer starts with a photo. Capture your readings, enter your pool volume and get a practical recommendation for what to do next. Premium Subscription Spalyzer offers an optional auto-renewable subscription, Spalyzer Premium Yearly. The subscription unlocks premium features such as extended measurement history, trends and product library features. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple ID account settings. Privacy Your pool data stays local on your iPhone. Photos are processed only for recognition and are not permanently linked to your identity. Safety notice Spalyzer does not replace professional advice. Always check product labels and follow the manufacturer’s instructions. Pool chemicals can be dangerous when handled incorrectly. Privacy Policy: https://klifter.github.io/spalyzer-legal/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Spalyzer Premium | $7.99 | per year | ## Version history (last 5 releases) ### 1.0.22 — 2026-07-30 The overview now correctly shows "Safe to swim" when all values are in the green range. The weekly algaecide dose is now calculated from your pool volume. ### 1.0.21 — 2026-07-07 - New weekly algaecide reminder - Aeration now suggested as a gentle way to raise pH when alkalinity is already high - Safety warning when dosing pH reducer without an alkalinity reading - Dosing unit now matches the product form (g/ml) - Clearer explanatory texts ### 1.0.11 — 2026-06-13 Better recognition of pool chemicals — descalers, active-oxygen disinfectants, multifunction tabs, bromine, phosphate removers and pool salt are now classified correctly. Two-photo product scan — front and back of a label can be captured together for substantially more accurate ingredient detection. Manual measurement entry — values can be typed in directly (for comparator testers, drop kits, etc.). With plausibility warnings and analog-scale-limit tips. Multi-day plan for critical water values — when readings are strongly off (extreme pH, very high chlorine, etc.), the app produces a concrete multi-day sanitation plan instead of a normal same-day dosing plan. Safer pH correction — pH-up / pH-down dosing now accounts for alkalinity buffering. With low buffer, steps are automatically smaller to prevent overshoot. Product images persist across updates — label photos now survive app updates instead of being cleared by the system. Sample-taking tip — the measure screen now explains how to take a representative sample (pump on 30 min before testing, sample from the middle of the pool, 30–40 cm depth). Free tier adjusted — one free measurement to try the app, then Spalyzer Premium for unlimited use. Various stability and readability improvements. ### 1.0.3 — 2026-06-04 More ingredients in label recognition: liquid pH up (sodium hydroxide) and pH down (sulfuric acid) are now identified automatically. Additional consistency checks when adding new products for even more precise dosing recommendations. ### 1.0 — 2026-05-21 No release notes. ## More apps by Timo Klaeui - [SwimAlyzer](https://appshunter.io/ios/app/swimalyzer/id6752701994) - [Tip Calculator - BillTip](https://appshunter.io/ios/app/tip-calculator-billtip/id6760011259) All apps by Timo Klaeui: https://appshunter.io/developer/1840616365 ## Related topics [calculadora para piscinas gratis](https://appshunter.io/ios/topics/calculadora-para-piscinas-gratis) --- *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 2026-08-07.*