For trips

One person fronts the cabin. Everyone sees what they owe.

Flights, the house, cabs, dinners. Every pair ends the trip with one number between them.

Use Eider on the web, iPhone, or Android.

You settle up as a pair

Eider does not reroute a debt through someone else. Every pair settles directly, and the many expenses between two people collapse to one number.
Ari and Sam$182.50
7 shared expensesAri owes Sam
Ari and Dev$44.00
3 shared expensesDev owes Ari
Noor and Sam$96.25
5 shared expensesNoor owes Sam
Every expense on the trip$1,842.75
3 periods agothis period
Eider never reroutes a debt through someone else. You settle up as a pair, and nobody ends up paying a stranger on the trip.
Trip split calculator
A $1,240 cabin, four people, one payer. The other three owe $310 each.
Assumes an even split and one person paying the whole amount.

A trip, start to finish

  1. 1
    Add an expense in secondsWhoever paid adds it. Eider applies the nest's standing split.
  2. 2
    Watch the balances moveOne running balance between each pair of people.
  3. 3
    Settle up at the endPay the person directly through your bank, a payment app, or cash, then record it.

Built for a trip that ends

  • Any sizeTwo people or eight, identical behavior.
  • Full historyEvery expense, searchable, after the trip.
  • Settle directlyYou pay each person directly. Eider never holds funds.

Start a nest for the trip.

Works in any browser too, no download needed.