Aquabook
Every water test in one place, in seconds.
No subscription. No limits on logging. Your data safe in iCloud.
Aquabook is a fast, calm log for reef and freshwater tanks: tests, dosing, maintenance, inhabitants and a journal, on iPhone, iPad and Apple Watch. It works offline.
Everything your tank needs
Made for test day: wet hands, a row of vials and a few numbers to get down before you forget them.
The fastest test entry
One screen per test with a number pad that never moves. Each value turns green, amber or red against your target as you type, next to the previous value and a small trend. A five-value reef test takes seconds.
Charts with target ranges
Every parameter as a chart with its target band, over two weeks, three months, a year or all time, with your doses marked. Choose your own units, from dKH to meq/L and °C to °F.
Dosing log
Log a dose in two taps, or repeat yesterday's in one. Keep your products and what they raise, and see what you dosed and when.
Maintenance reminders
Water changes, filter socks, glass cleaning and tests on your own schedule. Mark a task done and the next one is planned.
Inhabitants and journal
Fish, corals, invertebrates and plants with your own names and species, so nothing is ever missing from a database. Dated notes with photos for everything that happens in the tank.
Your data, safe
Works offline and syncs through your private iCloud account. Export everything as JSON and CSV whenever you like.
Clear at a glance
Latest values, days since the last test and what's next. Status shows as a shape as well as a colour.
Log from your wrist
See the latest values and the next task, log a dose with the Digital Crown, mark a task done or note a single value, right by the tank.
Your tank on the Home Screen
The small widget shows three parameters with their status and the days since your last test. With Pro, the medium widget adds the next task.
Unlimited logging, free
The free version keeps a whole tank with no limits on tests. Aquabook Pro is a single purchase.
Free
Free download
- One tank with unlimited tests, charts and full history
- Dosing log, maintenance reminders and a journal
- Up to 10 inhabitants, 3 dosing products and 1 photo per inhabitant or note
- The Apple Watch app and the small widget
- iCloud sync and export of all your data as JSON and CSV
Aquabook Pro
One-time purchase
Every tank. Every fish. One purchase.
- Unlimited tanks
- Unlimited inhabitants, dosing products and photos
- Share a tank with your partner or tank sitter
- Dose calculator and daily consumption
- PDF report for your fish store or forum
- The medium widget
One purchase. No subscription. 99 SEK, or the equivalent in your App Store currency, and shared with your family through Family Sharing.
Logging, charts, reminders, export, iCloud sync and the Apple Watch app stay free. Always.
Your tank, your data
No account. No ads. Your logs stay on your devices and in your private iCloud account. Anonymous usage statistics can be turned off in the app.
Read the privacy policyTest day, sorted
Aquabook is free to download for iPhone, iPad and Apple Watch.
Coming soon to the App Store.