Coralytic vs TankDiary

Stop watching your reef die from drift. Coralytic is the premium reef tank tracker for serious saltwater hobbyists — AI insights, ICP analysis, 20 languages. The only reef app fully built for SPS, LPS, and mixed reef keepers worldwide. WHAT MAKES CORALYTIC DIFFERENT Most aquarium apps are clunky spreadsheets. Coralytic is built like a 2026 iOS app should be — beautiful dark interface, native Swift, instant sync across iPhone and iPad. CORE FEATURES (free) • Track 15 water parameters — alkalinity, calcium, magnesium, nitrate, phosphate, pH, salinity, temperature, ammonia, nitrite, ORP, potassium, iodine, strontium, boron • Quick Log: enter all 8 core parameters in under 5 seconds • Charts with target ranges based on your tank type — SPS, LPS, mixed reef, or FOWLR • Reef Score™ — composite health metric for your saltwater system • Maintenance scheduler with smart push notifications • Livestock library: every coral, fish, invertebrate with growth photos • ICP results entry with reference range comparison (Triton, ATI, Reef Lab) • Cost tracking for equipment and livestock • Available in 20 languages PRO FEATURES • Unlimited tanks (free tier limited to 1) • Years of parameter history (free tier limited to 6 months) • AI Insights — Google Gemini analyzes your tank context every 24 hours and surfaces 3-4 actionable recommendations in your language • All Pro features unlocked with one subscription DESIGNED FOR REEFKEEPERS, BY REEFERS Coralytic isn't a generic aquarium app retrofitted for saltwater. Every parameter range, every UI decision, every AI prompt is reef-specific. If you keep an SPS-dominated reef tank, an LPS garden, or a mixed reef, this is built for you. PRIVACY FIRST Your data stays on your device. No account required. No third-party trackers. AI Insights sends only anonymized tank context to Google Gemini, fully disclosed in the privacy policy. CORALYTIC PRO SUBSCRIPTION • Weekly: $2.99/week • Monthly: $6.99/month • Yearly: $39.99/year — just $3.33/month, billed annually (Save 50% vs monthly · includes 7-day free trial) Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage subscriptions in your Apple ID account settings. Privacy Policy: https://fortuna50.github.io/coralytic-legal/privacy.html Terms of Use: https://fortuna50.github.io/coralytic-legal/terms.html Support: hello@limenw.com

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/