TankDiary vs Aquarium Manager

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/

Aquarium Manager turns fishkeeping guesswork into a simple daily routine. Log every tank, track water test results over time, and let a built-in cycling coach tell you exactly when it's safe to add new fish — all from your phone, whether you run one small fish tank or a whole fish room. Water chemistry is where most tanks go wrong. Aquarium Manager reads your ammonia, nitrite, and nitrate readings and turns them into a clear trend line instead of a page of numbers, so you always know whether your nitrogen cycle is stable, spiking, or still establishing. Most new tanks fail for the same reason: fish go in before the tank finishes cycling. Aquarium Manager exists to make that mistake much harder to make. WHAT YOU CAN DO • Track every tank you own — freshwater, saltwater, planted, or reef, each with its own livestock and history • Log water test results — ammonia, nitrite, nitrate, pH, and more, charted over time so trends jump out • Cycling coach — a step-by-step read of your nitrogen cycle that tells you when it's actually safe to stock • Compatibility check — see if a new species fits your existing tank before you buy it, not after • Disease photo ID — snap a photo of a sick fish for informational guidance on what might be wrong • AI diagnosis — describe symptoms and get hobby-level troubleshooting for common tank problems • Species guide — care sheets for popular aquarium species, from tank size to feeding to temperament • Maintenance schedule — water changes, filter cleans, and test reminders so nothing slips • Stock log and audit — a running inventory of every fish, plant, and invertebrate in every tank, so you always know exactly what's living where • Tank history — look back weeks or months to spot slow chemistry drift long before it turns into an algae bloom or a stressed, sick fish WHY AQUARIUM MANAGER • Built for real fishkeeping — the cycling coach and water test log solve the two things new hobbyists get wrong most • One place for every tank — no more scattered notes, spreadsheets, or sticky notes on the stand • Photo-based help — disease ID and AI diagnosis give you a starting point before you call an aquatic vet • Reminders that stick — maintenance tasks are scheduled, not just remembered • Works for beginners and veterans — a single freshwater community tank or a multi-tank fish room • Species-first buying — check compatibility before checkout instead of researching an incompatibility after the fish is already home WHO IT'S FOR • New hobbyists cycling their very first fish tank and unsure when it's safe to add fish • Experienced keepers juggling multiple tanks who want water test history in one place • Reef and planted tank owners who need to catch chemistry drift before it becomes a crash • Anyone who has lost fish to an uncycled tank and wants that to never happen again Aquarium Manager is informational hobby guidance, not a substitute for a veterinarian — for a sick or valuable animal, always consult an aquatic vet. For everyday tank care, it's the log, the cycling coach, and the compatibility check that keep your fish tank healthy between water changes. Download Aquarium Manager and give every tank the tracking it deserves. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://coddykit.com/terms/privacy-policy