Log a water test the way you actually read it. • Test-kit color chart — the Add Readings sheet now shows the liquid-kit color card for ammonia, nitrite, nitrate and pH. Tap the square that matches your test tube and the reading is logged. Follows the API Freshwater Master Test Kit steps; other liquid kits use the same values. Switch it off anytime if you'd rather type. • Cleaner entry — parameters your tank doesn't use stay out of the way until you ask for them. • Full German, Japanese and Brazilian Portuguese, and units that follow your region. • Fixed: readings and chart chips could appear in a different order every time you opened a tank. The color chart, the cycle tracker and the calculator are free — no Pro required.

Setting up a new tank? TankDiary now tracks the nitrogen cycle for you. • Nitrogen cycle tracker — log ammonia, nitrite and nitrate as you normally would, and TankDiary plots the classic cycle curve, names the stage you're in, and tells you the one thing to do next. It won't declare your tank cycled until it has actually watched it process waste, so you never get a false all-clear. • Water change calculator — how much water to pull, how much conditioner to add, and what the change will really do to your nitrate, including the floor set by nitrate in your own tap water. Log the change straight from the calculator. • Clearer charts — the safe range is now drawn over the graph instead of behind it, so you can actually see when a reading is drifting out of it. • Fixed: tanks could report "Last water change: Never" even when one had been recorded. Both new features are free — no Pro required.

TankDiary 1.2 is the biggest quality update yet: • Needs Attention — your home screen now flags out-of-range parameters and overdue maintenance across every tank, so you know if something's wrong at a glance. • Interactive charts — touch and drag any graph to read the exact value and date of every test. • Full-screen photos — tap any journal, tank, or livestock photo to view it full screen with pinch-to-zoom. • Search — filter your livestock by species or name, and search your journal entries. • New-to-TankDiary tour, plus an optional sample tank so you can explore with real-looking data before adding your own. • Settings now warns you if notifications are turned off, so reminders never silently fail. • Polished paywall, clearer restore-purchases feedback, and lots of small fixes. Free stays free: 1 tank, working reminders, 30 days of history, CSV export, and backups — no account, no ads, nothing leaves your device.