A record-keeping app for people who grow aquascapes. Water changes and test results take two taps, and fixed-point photographs show you a whole year of growth at once.
Most aquarium apps are built as calendars with numbers attached. SUIKEI starts from the other end. Open the home screen and the largest thing on it is the tank itself; today's tasks, anything needing attention and the latest readings sit quietly underneath.
In fixed-point mode the previous photograph is laid over the camera at half opacity. Keep shooting from the same spot and the stems growing in, the moss taking the rock, all of it stays. Put two dates on top of each other and drag the handle between them.
The centre button opens the log sheet, and tapping a type saves it on the spot. Amounts, notes and photos come after. Ask for input before saving and logging always becomes a chore. If you tap the wrong one, you have four seconds to undo it.
Everything is unlocked for 45 days from the day you add your first tank. When the period ends, every log, photo and reading stays visible — and you can still export or delete them. Pick a plan when you want to start writing again.
After the 45-day period the app becomes read-only: adding and editing stop. Everything you have already recorded stays visible, and you can still export or delete it. Prices shown are for the Japanese App Store and Google Play and vary by country. Renewal terms and how to cancel are set out in the Terms of Use.
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