ReefNote: Reef & Aquarium Log
Log water parameters in seconds, flag anything out of range, and keep dosing and water changes on schedule. Reef or freshwater, with a shareable tank report.
Download on theApp StoreReefNote keeps your aquarium on track: log every water parameter, flag anything out of range, and keep dosing and maintenance on schedule.
Testing is fast. Pick a parameter, tap the value on a big pad with the right unit (dKH, ppm, SG), and save. Each parameter remembers its last value, so a routine round of tests takes seconds.
WHAT YOU GET
- Parameter log with target ranges: reef and freshwater presets you can edit per tank, with out-of-range flags the moment you save
- Trend charts: every parameter over 30 days, 90 days, or a year, with your target band drawn behind the line and each point coloured by its flag
- Dosing and water changes: repeat schedules with clear overdue and due-today states, one tap to mark done
- Livestock registry: fish, coral, and inverts with photos, added dates, and notes
- Maintenance reminders: a per-task reminder so nothing slips
- Tank journal: one timeline that mixes your tests, doses, and events
- Tank report: a shareable PDF of parameters versus targets, livestock, and schedule, plus a CSV of every reading (Pro)
REEF OR FRESHWATER Set the tank type and ReefNote starts with common target bands for each parameter, then lets you tune every band to the numbers you keep.
FREE AND PRO Free includes one tank and 30 tests, with target ranges, trends, the schedule, and the livestock registry. Pro unlocks unlimited tanks, unlimited test history, and the PDF and CSV exports.
PRIVATE BY DESIGN Everything stays on your iPhone. No account, no cloud, no tracking.
SUBSCRIPTION DETAILS ReefNote Pro is available as a monthly or yearly subscription, or as a one time lifetime purchase. The current price is shown in the app and on this page before you buy. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically until cancelled. Manage or cancel anytime in Settings > Apple Account > Subscriptions; cancellation takes effect at the end of the current period. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
More in this category
ReefNote: Reef & Aquarium Log does one job well, works offline, and keeps your data on this device. There is no cloud sync, no account, and nothing to sign up for.
Who it is for
ReefNote: Reef & Aquarium Log is for anyone who wants a dependable way to handle this without a spreadsheet or a complicated setup. It sits in the Lifestyle category on the App Store.
Private by design
No ads, no trackers, no data harvesting, and no cloud sync. Your entries stay on this device and never pass through our servers. There is a Delete All My Data control, so you stay in charge.
Common questions
What is ReefNote: Reef & Aquarium Log?
Log water parameters in seconds, flag anything out of range, and keep dosing and water changes on schedule. Reef or freshwater, with a shareable tank report.
Is ReefNote: Reef & Aquarium Log on the App Store?
Yes. It is available now on the App Store.
Does ReefNote: Reef & Aquarium Log work offline?
Yes. Everything runs on your device, so it works with no signal.
Does ReefNote: Reef & Aquarium Log work on iPad?
Yes. It is a universal app and runs natively on iPhone and iPad.
Does ReefNote: Reef & Aquarium Log include in-app purchases?
Some advanced features require an in-app purchase. The App Store shows the current choices, prices, and terms for your storefront before you confirm anything.
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