Support
Last updated: 29 July 2026
Need a hand with Sumzy? We're happy to help. The fastest way to reach a human is by email.
Contact us
Email support@sumzy.co and tell us what's going on — the more detail (what you tapped, what you expected, what happened), the faster we can help. We aim to reply within a couple of business days.
Common questions
How do I sign in?
Sumzy is passwordless. You sign in with a one-time code sent to your email, or with Sign in with Apple or Google. There is no password to remember or reset.
How does splitting work?
Add an expense to a group and choose how to split it — equally, by exact amounts, or by percentage. Sumzy keeps a running, per-currency balance of who owes whom, and lets you settle up by recording a payment.
Why are my balances separated by currency?
Sumzy never mixes currencies. If a group has expenses in more than one currency, balances and settle-ups are tracked separately for each one, so nothing is ever converted behind your back.
Can I change the app's language?
Yes. Sumzy is available in English, Portuguese, Spanish, French, German, Italian, Japanese and Chinese. The app follows your device language, and you can override it in Account → Language. Emails and notifications we send you use the same choice.
Can I get a copy of my data?
Yes. Open Account → Export in the app to export your data.
How do I delete my account?
You can delete your account in Account → Delete account permanently, or by email if you can't reach the app. See the account deletion page for the exact steps and what happens to your data.
Privacy & your data
Sumzy collects only what the app needs, never sells your data, and never uses it for advertising. Read the full Privacy Policy, or learn how to delete your account.