Spend with confidence, save without thinking about it
No card required · 14-day free trial
How it works
Everything your money does, in one place
01
See where the month went
Salary in, rent, groceries, card charges out. Cassis lays out every movement in order, so the number left at the end stops being a surprise.
02
One balance, all six accounts
Six accounts, one number. And the part of it you can actually spend. No spreadsheet, no mental arithmetic, no wondering what already left.
03
Catch what slips through
Cassis flags the charges you didn't recognize and the subscriptions you forgot, while there's still time to cancel them.
Features
Built for the questions you actually ask
Feature 01
Know before it happens
Cassis projects your balance 30 days out, using the charges it already knows about. When a quarterly bill is about to take you under, you find out with a week to spare.
Feature 02
See where it actually went
Every charge sorted by category and merchant, across all your accounts. The biggest block is the answer — no digging, no spreadsheet.
Feature 03
Saving that happens without you
Split every paycheck the moment it lands. Set the rules once, and each goal fills itself while you get on with your life.
Ready to see your own numbers?
Connect one account and the first projection lands in minutes.
Proof
The money you didn't know was leaving. Cassis has found it in every account it has ever read.
$0
$0
Found in forgotten charges
0 min
0 min
From signup to full picture
0 in 4
0 in 4
Hit their goal ahead of time
0
0
Accounts connected
“The projection told me April would be tight two weeks before it was. I moved a payment instead of scrambling.”
Tom Reilly
Plumber, Manchester
“We split rent, groceries and a holiday fund across two accounts. First tool that didn't make one of us the bookkeeper.”
Aïcha Diallo
Teacher, Brussels
“I'd stopped opening my banking app. Now I check Cassis on the train and it takes ten seconds.”
Sam Okonjo
Bartender, Dublin
“I stopped budgeting years ago because I never kept it up. Cassis doesn't ask me to keep anything up — it just shows me the number.”
Nadia Haddad
Physiotherapist, Marseille
Security
Bank-grade, audited, boring. Exactly as it should be.
Cassis reads your accounts. It never touches your money. Everything else is encryption, audits and paperwork.
End-to-end encryption
AES-256 at rest, TLS 1.3 in transit. Keys rotate automatically, without us seeing them.
Independently audited
SOC 2 Type II and ISO 27001 certified, with a full external re-audit every single year.
Read-only access
Cassis can see your transactions. It cannot move, send or spend anything, ever.
Yours to delete
Close your account and every transaction we've stored disappears with it, permanently.
Pricing
Three plans. Change your mind anytime.
Can Cassis move money out of my accounts?
No. Cassis connects to your accounts in read-only mode, which means it can see transactions and balances but has no ability to send, spend, or transfer anything. Savings rules work by telling you what to move and when — the actual transfer happens in your own banking app, with your own authorization, every time.
Which banks and cards can I connect?
Over 4,000 institutions across the US, UK, and EU, including every major retail bank and most credit unions. Cards, current accounts, savings, and brokerage all sync the same way. If yours isn't supported yet, tell us and we'll add it — most requests take under three weeks to go live.
How safe is my banking data with you?
Your credentials never touch our servers; the connection runs through a regulated aggregator, and we only receive a read-only token. Everything after that is encrypted with AES-256 at rest and TLS 1.3 in transit. We're SOC 2 Type II and ISO 27001 certified, re-audited externally every year.
Do you sell or share my spending data?
Never, to anyone, in any form. We don't run ads, we don't work with data brokers, and we don't build anonymized profiles to license out. Cassis is funded by the people who pay for it — that's the whole model, and it's why the free plan is limited rather than subsidized by something else.
What happens to my data if I cancel?
Cancel whenever you like and you keep access until the end of the billing period, with no exit fees or retention calls. Delete your account and every transaction, category, and rule we've stored is permanently erased within 30 days. You can export everything to CSV first, in one click.
How is this different from my banking app?
Your bank only shows you its own accounts, and only what has already happened. Cassis reads all of them at once, tells you what's coming in the next 30 days, and flags the charges you didn't recognize. Your bank has no reason to help you spend less with it — that's the difference.