One shopping list, sorted by aisle.
Anyone in the home adds to it and everyone sees it at once. Milk goes under Dairy & eggs, bread under Bakery. Search UK products or scan the barcode on the empty packet.

A first flat after uni, a student house in September, a couple moving in. Tandem is one shopping list, the chores, a calendar and the shop spending for everyone in the home, on iPhone.

Anyone in the home adds to it and everyone sees it at once. Milk goes under Dairy & eggs, bread under Bakery. Search UK products or scan the barcode on the empty packet.

Start a shop and the others see you are at the shop. Big tick boxes and a count of what is left. Scan a barcode at the shelf to tick it off. When you finish, add the total or photograph the receipt.

Bins every week, the bathroom every fortnight. Pick who does it or let Tandem take turns between you. A 30-day tally shows who did what. A reminder comes on the day, at the time you pick.

Rent day, the inspection, someone's parents visiting. Add a date for everyone or for one person, and make it repeat. Chores and hosting plans are on the same month. Tandem can also show your iPhone's calendars.
Add the total after each shop. Tandem shows who paid this month and, split evenly, who owes whom. Set a monthly budget if you want one. It covers shops, not rent or bills.

Dinner party, birthday, Sunday roast. Add guests and what they eat, split the prep list, send ingredients to the shopping list, and keep costs against a budget.

For two to eight people in one home.