Group types

Each group starts with one question: what type of event is this? The type sets the rules, the defaults and the main screen.

You pick the type when you make the group. To change the settings of a type later, open the group and tap the settings icon at the top.

Trip

For a holiday or a weekend away with friends or family.

Dates: the first and last day. The top of the trip shows the spend and the cost per person per day.
Budget: the top of the trip shows the budget that is left.
Split: Equally (each expense is shared by all, and Rata skips the split step), By what each had (you pick the split for each expense) or By family.
Families: put two or more people in a family. One person pays for the family, and settles for all of it. A child can be in a family without an account. Each person can be in one family only. Change families before you settle up, because a change also moves past balances.
Kitty: one person holds the shared cash. Tap Add money to record money that a person gives to the kitty. Pick Paid by: Kitty for an expense that the kitty paid. The top of the trip shows what is left in the kitty. At the end, the normal settle-up gives the rest back.
A trip can use other currencies. See Currencies.

For a flat, a couple or a family house.

Default split: Equally or By shares, for example 2 : 1 : 1. Each new expense starts with this split.
Budget a month: the top of the group shows this month's spend, the budget that is left and the cost per person.
Bills: turn on Repeat monthly when you add rent or a bill. Rata adds it again each month. To stop a bill, open it and turn off the repeat.

Host: the person who made the group, until you pick another person.
Costs: Guests split (all guests share the costs) or Host pays (each new expense goes to the host only, also for guests who join later).
A guest who buys something adds it as an expense. The host pays the guest back.
The top of the group shows the cost per guest.

For a group gift, for example a birthday present.

Gift for: the name of the person who gets the gift. Do not add this person to the group. They never see it.
Collector: the person who collects the money and buys the gift.
Target: the amount to collect. A bar shows how much is in.
Each pays: Same part (the target divided by the number of people) or Own amount (each person sets an amount, and the collector pays the rest).
Tap Start collecting to add the gift as one expense, paid by the collector. Each person then pays their part to the collector, for example with UPI.
When the target or the people change, tap Update split.

For a poker night with friends. The group records buy-ins and chip counts, and settles each night.

Buy-in rules: a minimum and a maximum buy-in, rebuys on or off, and the value of one chip. A buy-in below the minimum is not possible. A buy-in above the maximum needs the host to approve.
Tap New game to start a night. Then tap Buy-in for each buy-in.
At the end, enter the chips of each player in Cash-out.
Close game works only when chips out equal chips in. If not, Rata shows the difference and the player with no count.
After the close, each player sees "Won" or "Lost" for the night. The season table shows the results of all nights.
Food and drinks are a normal expense with the group split. They are spend, not a poker result.

A plain group with no special rules. Each expense uses the split that you pick.