For roommates
Rent, power, internet. Added once, split every month.
Four bills on four different days, each on the split you set once. The balances move as they land.
Use Eider on the web, iPhone, or Android.
- Repeating expensesRent on the 1st, internet on the 4th. Added on their own day.
- A standing splitEven or by percentage, set once on the nest.
- Two people or eightThe house works the same at any size.
The month, set once
Every rule has a day and a split, so the bills land without anyone re-entering them.The month
SMTWTFS
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Rent day 1Internet day 4Power day 12Water day 18
By category$3,305.60
- Rent$2,400.00100%
- Groceries$612.4026%
- Power$143.206%
- Internet$89.004%
- Water$61.003%
Four of these five repeat, on their own day.
Shared houses usually work out the division early and then spend months re-applying it. The rent is the same split in March as it was in January, and so is the internet. A shared record keeps that decision in one place, where everyone in the house can see the expense, the split that was used, and where the balance stands.
Groceries and the everyday back-and-forth get added in seconds, on the same split, and the running balances move with them.
What a household uses
- Running balancesOne number between each pair of people, not a list of IOUs.
- Full historyEvery expense, searchable, from the day the nest was made.
- Settle upPay through your bank, a payment app, or cash, then record it. Eider never touches the money.
Common questions
What if someone moves out mid-month?Add or remove a member and the standing split re-derives. Expenses already added keep the split that was used when they were added.
Can I see what I have paid this month?Yes. The nest keeps a full history and a per-period view.
Do we all need the app?No. You can name the other member without sending an invite, and the balance still works.
Is it free?Nests, expenses, standing splits, repeating expenses and settling up are free, with no member or expense limits. Plus adds receipt scanning, split by item, bank sync and spending insights.