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.

- 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

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.

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.