TankVitals - Aquarium Log

Log every test in seconds and see each value at a glance. One-time purchase - no subscription, no ads, no account. Everything stays private on your device.

TankVitals is the clean, no-nonsense way to track your water and keep your fish and corals thriving. Whether you run a planted freshwater tank or a full-blown reef, enter your test results and instantly see every value color-coded by safe range - green when healthy, amber when drifting, red when it needs attention.

Know Your Water at a Glance The moment you save a test, each parameter is scored against community-standard safe ranges and color-coded so you know exactly what needs action. No more digging through charts to interpret a number.

Log a Test in Seconds A focused entry screen pre-fills the full parameter set for your tank type, with a safe-range bar under every field. Back-date readings, add notes, and your history merges automatically by day.

See the Trend Over Time Tap any parameter to open its history as a chart or a full list. Watch alkalinity, calcium, or nitrate move over 30, 90, or all-time days, with the safe range shaded right on the graph.

Features • Color-coded dashboard - every reading scored green, amber, or red against its safe range • Full parameter sets - pH, ammonia, nitrite, nitrate, KH, GH, alkalinity, calcium, magnesium, salinity, phosphate, and custom values • History charts - line graphs per parameter with safe-range bands and 30/90/all-time views • Dosing calculators - Two-Part, salt mix, and Kalkwasser math for saltwater and reef keepers • Maintenance tracking - water changes and equipment service with overdue reminders • Multiple tanks - manage freshwater, planted, saltwater, reef, and pond setups side by side • Test reminders - on-device notifications tell you when each tank is due, with snooze • Private by design - all data lives on your device, no account and no sign-up • CSV export and backup - take your full history with you anytime

No Account. No Ads. Everything runs offline on your device. No email, no login, no analytics, no network calls. Your readings are nobody’s business but yours.

Pro Unlock Unlock everything with one single purchase - unlimited tanks, full history and charts, dosing calculators, maintenance tools, back-dating, notes, and CSV export. No subscription, ever.

Download TankVitals and give your fish and corals the stable water they deserve.

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