AquaSense.fish vs TankDiary

AquaSense is the all-in-one companion for keeping a healthy freshwater or saltwater aquarium. Whether you run a nano reef, a planted community tank, or a big cichlid setup, AquaSense turns guesswork into clear, confident care. YOUR TANK'S HEALTH AT A GLANCE See pH, ammonia, nitrite, nitrate, KH, salinity and more the moment you open the app. Every reading is checked against the ideal range for your water type and livestock, so you instantly know what's fine and what needs attention. IDENTIFY ANY FISH FROM A PHOTO Not sure what you're looking at — at the store or in your own tank? Snap a photo and AquaSense identifies the species, then tells you how to care for it. KNOW WHAT LIVES WELL TOGETHER Before you add a new fish, check it against everything already in your tank. AquaSense flags aggression, size mismatches, and other conflicts so you avoid costly mistakes. TRACK EVERY FISH YOU KEEP Build a livestock list for each tank, with care levels, temperament, and notes. Tap any fish for a full species profile. A DEEP, TRUSTED SPECIES LIBRARY Browse a growing library of freshwater and saltwater species with real care requirements — temperature, parameters, diet, tank size, and compatibility. PLAN BEFORE YOU BUY Sketch out a tank build — water type, size, filtration, and stocking — and see whether it works before you spend a cent. CARE TOOLS BUILT IN Log water changes and maintenance, set reminders, and get AI-powered guidance tailored to your specific tank. AQUASENSE PRO Upgrade to Pro for unlimited photo fish ID, the full AI assistant, and advanced care insights. Subscriptions are billed through your app store account and can be managed or canceled anytime in your account settings. Freshwater or saltwater, beginner or expert — AquaSense helps you keep your fish healthy and your water right. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aquasense.fish/privacy

Know when your new tank is safe for fish — TankDiary reads your ammonia, nitrite and nitrate tests and names the cycle stage you're in. Log a water test by tapping the color that matches your test tube. No account, no cloud, nothing leaves your phone. TRACK WHAT MATTERS Log temperature, pH, ammonia, nitrite, nitrate, GH, KH, TDS and more in one quick sheet. Color-coded safe ranges tell you at a glance if something's drifting. Interactive charts show trends over weeks or years — with the safe zone drawn right on the graph and touch-to-read values on every point. KNOW WHEN SOMETHING'S WRONG The home screen flags out-of-range parameters and overdue maintenance across all your tanks the moment you open the app — no drilling in required. NEVER MISS A WATER CHANGE Set schedules for water changes, filter cleans, dosing and trimming, with reliable local reminders at the time you choose. The built-in water change calculator tells you how much to pull, how much conditioner to add, and — the part nobody else answers — what the change will actually do to your nitrate, including the floor set by nitrate in your own tap water. YOUR WHOLE TANK, REMEMBERED Livestock list with photos — fish, inverts, plants — searchable by species. A photo journal for milestones, rescapes and diary notes, with full-screen pinch-to-zoom. Everything works offline. SPEAKS YOUR LANGUAGE Fully translated into German, Japanese and Brazilian Portuguese, with the terms hobbyists actually use. Units follow your region and can be changed anytime. HONEST PRICING Free forever: 1 tank, working reminders, 30 days of history, the full cycle tracker, the color chart and the calculator. TankDiary Pro unlocks unlimited tanks and full history as a one-time purchase — pay once, own it forever. There's a cheap yearly option too, but we think you'll prefer to just own it. No account. No cloud lock-in. No selling your data — there's nothing to sell; it never leaves your device. Made by a hobbyist who got tired of spreadsheet water logs. Privacy Policy: https://tankdiary.com/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/