Where can I see what a group spent, and what I spent?

Open a group and tap Totals, under its balance, once it has an expense. Choose a Period, All time or one month, and see the Total spent, Your share, what You paid, the payments you made and received, and the Change in your balance. Over all time, that change is your balance.

By category shows a bar split by category, with each one's amount and share. Tap a category to list its expenses and see its months. Over all time, By month shows twelve months, everyone's spending beside yours: the year up to this month, or up to a later month with an expense dated ahead, or, when nothing was spent in the past year, up to the last month something was. Tap a month to see its figures, or its name to open that month's totals.

What the group spent, your share and what you paid are in the group's currency, each expense at the amount the balances count. Payments, and the change in your balance, are shown in each currency they were made in.

In Account, Your spending shows your share across all your groups over twelve months chosen the same way, archived groups and what is just between you and friends included, by category and by month. It shows one currency at a time and never adds currencies together; with more than one, choose which.

Both are worked out on your phone from its copy of your groups, so they open offline. Deleted expenses don't count.