How a session works
Notchrow is a household meter log for Android. You type the number on an electric or water meter. The app keeps the previous reading, works out the use for that interval, and shows a price estimate from prices you entered. The estimate is not a utility bill.
Homes and meters Add a home, then add meters to it. An electric meter can have one register or a day and night pair. A water meter has one register. Each meter stores the unit, the price per unit, and an optional standing charge per day. You type those prices. Notchrow does not look up a tariff and does not connect to a supplier.
Logging a reading Open a meter and enter the date and the number you see. Registers are expected to go up. If the new number is lower, mark the meter as replaced. A replacement starts a new baseline and does not treat the gap as use. A short note is optional.
The estimate For a dual electric meter, day use and night use are priced separately. The standing charge is the daily amount times the days in the interval. Each part is rounded to the currency's usual fraction before the parts are added. The home total adds the latest interval on each meter. The screen says this is not a bill.