Your log is yours to take with you
A logbook you cannot export is a logbook you do not own. This one exports in one tap.
Because the app runs offline with no account, there is no server copy of your history. Export is how you make a second copy — and how you get your data out of the app if you ever want to leave.
What is in the file
- Timestamp, tank name and tank volume.
- Every parameter you logged for that entry, one column each.
- Maintenance events — water changes with volume, filter cleanings, top-offs, dosing.
- Feeding entries, if you want them in the same timeline.
Why CSV instead of a PDF
A PDF is a picture of your data. A CSV is your data. Open it in Numbers, Excel or Google Sheets, pivot it, chart it, or paste a week of readings into a forum post when you are asking for help.
Frequently asked
Where does the exported file go?
Can I re-import a CSV?
Water Test Log
pH, ammonia, nitrite, nitrate, temperature and any custom reading — attached to the tank it came from, dated, and searchable.
Read →Maintenance Reminders
Water changes, filter cleaning, siphoning, top-offs and dosing — scheduled per tank, with overdue work surfaced on the Today screen.
Read →Feeding Log
One-tap feeding entries per tank, so “did I already feed them?” stops being a guess — and so does overfeeding.
Read →Stop guessing what your tank did last week
Log a test in twenty seconds, get reminded before maintenance is overdue, and keep a history you can actually read back. Free for one tank — no account, no subscription.
Open the App Store link →