The app that keeps flatmates actual mates.
Casamates handles the expenses, the chores, the shopping lists and more, so your group chat can go back to memes instead of money.


One app for everything your household argues about.
Bills, chores, shopping, plans: Casamates keeps your flatshare's admin in one place instead of a dozen apps and a chaotic group chat.
Split bills & settle up
Divide costs evenly or by exact amounts and always see a clear balance.
Chores & tasks
Assign jobs, set reminders, and know exactly who did what.
Shopping lists
Shared or private lists that update live while someone is at the shop.
Household calendar
Every event, chore and payment on one shared timeline.
However you share, Casamates fits.
Flatshares
University halls, graduates, couples, families. Split bills, rotate chores, share shopping lists, and keep everyone on the same calendar.
Friend groups
Track shared expenses, plan events on the calendar, build group shopping lists, and assign who is bringing what.
Trips and events
Plan with lists and the calendar before you go. During the trip, track expenses and assign chores so nothing falls on one person.
Real people, real flatshares.
Moving in, or moving out? Sort the paperwork first.
No sign-up needed. Use these free web tools to agree rent, write down house rules, and challenge deposit deductions with a proper paper trail.
Rent Split Calculator
Split rent fairly by room size, income, or extras like an en-suite or balcony.
Roommate Agreement Generator
Put rent, chores, guests, utilities and move-out rules in writing in minutes.
Deposit Deduction Estimator
Challenge an unfair deposit deduction with a clear, evidence-backed letter.

Built by three flatmates, for every flatshare.
We got tired of IOUs, spreadsheets and awkward money chats, so we built the app we wished we had. We read every bit of feedback.
Meet the teamSet up your household in minutes.
No more IOUs, spreadsheets, or awkward money chats. Free to download.