Your household's money, in one calm place.
Castle Finance brings the whole family's accounts, budgets and goals together. Import your statements, see where the money goes and plan the month — with your data locked like a castle.
Free plan forever. No card needed. No bank passwords, ever.
Everything a household needs, nothing it doesn't
Made for families
One household, everyone with their own login. Invite your partner in a minute and decide who can change what.
Import without the typing
Bank statements (CSV, Excel, PDF) and receipt photos become transactions, categorised and without duplicates.
Locked at rest
Your financial data is encrypted with your household's key, unlocked with a passkey. When nobody is signed in it is unreadable — backups included.
Any country, any currency
Each transaction keeps its own currency and is converted to yours, so you see what the other currency is really costing.
Plan, not just track
Monthly budgets, savings goals, debts and net worth, with a clear summary of what is left for the month.
Works with your AI assistant
Connect Claude or another assistant with a key you control, to add expenses or ask about your month. Revoke it any time.
Simple pricing
Start free. Upgrade when your household needs more.
Família
- Up to 6 members
- Unlimited accounts, imports, budgets and goals
- Debts, net-worth history and export
- Try it free for 14 days, no card
Questions
Your financial data is encrypted with a key that belongs to your household and is opened with your passkey only while you are signed in. Backups are encrypted too. We never sell or share your data.
Bring your household's finances home
It takes two minutes to start. No password to remember: we send you a sign-in link.
Start free