The group tripsSplitwise can't handle.

01 · The kitty

A real kitty, not just IOUs.

Everyone deposits into a shared pot. Different amounts are fine — some pay exactly their share, others chip in extra “just in case.” The app tracks who put in what, who has credit, who still needs to top up.

When the trip ends, you don't owe each other random amounts. You know exactly what each person paid in, what they spent, and what's left in the pot.

• Track deposits per person
• See live kitty balance
• Settle up automatically at the end

02 · Subgroups

Subgroups within your trip.

Half the group goes wine tasting. The other half goes hiking. Three of you order pizza, the rest cooked. In Splitwise, you'd manually check and uncheck names for every single expense.

In Kittybook, you create subgroups once — “wine night,” “hikers,” “pizza crew” — and reuse them anywhere. Costs go to the right people automatically.

• Define groups once, reuse anywhere
• Costs split across the right people
• The feature Splitwise users have requested since 2013

03 · Carry-over

Balances that carry over.

When the trip closes, surplus doesn't vanish. It becomes each person's personal credit for next year — automatically. Raymond paid €25 extra last year? That's his starting balance this year.

For groups with a yearly tradition — ski trips, scout camps, summer houses, bachelor parties that became an annual thing — this is the difference between “starting over every time” and “an actual ongoing treasury.”

• Auto carry-over between events
• Per-person personal credit
• Built for annual traditions