TankDiary vs Coralytic

Track your aquarium's water quality and never miss a maintenance day. Simple, focused, and built for every type of tank — freshwater, planted, saltwater, or outdoor. 【Log Your Water Quality】 Record pH, temperature, GH, KH, ammonia, nitrite, and nitrate. Add up to 5 custom parameters. Your last reading is shown as a hint while you type, so entry is fast. 【Visualize Trends】 See parameters on a clean graph over 7, 30, 90 days, or all time — with the ideal range highlighted so you can spot problems at a glance. (30-day+ graphs require Pro) 【Maintenance Reminders】 Set repeating tasks for water changes, feeding, fertilizing, filter cleaning, CO2 refills, and more. The home screen shows "next maintenance in X days" for every tank. 【Reagent Timer】 Built-in 2, 5, and 10-minute countdowns — no more guessing when your test kit is ready. 【CSV / ZIP Export & Import — Free】 Export water records as CSV, or back up tanks, photos, logs, and schedules as a ZIP. Import the same files anytime — free for everyone. 【TankDiary Pro — One-Time Purchase】 • Register more than one tank • View graphs beyond 7 days (30 / 90 / all-time) No subscription. No recurring fees. Ever. 【Perfect for every tank】 Freshwater, planted, reef, goldfish, shrimp, outdoor ponds — TankDiary works with any setup. Especially useful if you've ever: • Lost fish from a missed water change • Struggled to keep water parameters stable • Wanted an easier alternative to spreadsheets • Been managing multiple tanks (Corydoras, guppies, discus, goldfish, cichlids, shrimp...) 【Your data stays with you】 All records are stored on your iPhone or iPad. No cloud sync. No account required. 【No special hardware needed】 Works with any test kit or test strips. Just enter your readings manually. 【Pricing】 • Free: 1 tank, 7-day graphs, CSV/ZIP export & import, core features — free forever • TankDiary Pro (one-time, no subscription): multiple tanks, long-term graphs --- Developer: Kore Apps Support: support@kore-apps.com ---

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