Krumbs support

Last updated: 2 August 2026

Krumbs splits the group’s expenses and tells you who owes what to whom. Here is how to reach us and the questions that come up most often.

If you are reporting a bug, it helps a lot to include: which phone you use, what you were doing and what you expected to happen. A screenshot is even better. Never send us your password: we will never ask for it.

Your account

I opened the app and already have an account without signing up. Why?

Krumbs creates an anonymous account the first time it opens so you can start using it without forms. That account lives only on that phone: if you lose it, change phone or uninstall the app, that data cannot be recovered. Save it with your email, with Apple or with Google as soon as you can.

I forgot my password

On the sign-in screen, tap “Forgot your password?” and enter your email. You will get a link to choose a new one. If it doesn’t arrive, check your spam folder.

How do I change my name, language, theme or currency?

Everything is in Profile. Tap your name to change it. Language (Spanish or English), theme (light, dark or follow the system) and your main currency each have their own row on that same screen.

I want to delete my account

Profile → Delete profile. It is immediate and cannot be undone. What is deleted and what is not is explained on the account deletion page.

The receipt scanner

What happens to my receipt photo?

It is sent to Google Cloud (Vertex AI) to be read, and it is not stored on any Krumbs server: it is transmitted, processed and discarded. What is stored is the result (merchant, items and prices) so you can reopen the receipt and fix the split. Google does not use the image to train its models: this is explained in full in the privacy policy.

It misread my receipt

It happens: reading is automatic and it can skip a line or confuse a price. That is why the split is shown to you to review before the expense is saved. Everything on that screen is editable. If a receipt reads particularly badly, email it to us (cover anything you don’t want to share) and it helps us improve.

It says I’ve hit the scan limit

There is a limit of 30 scans per account per day. That is what keeps the service free and prevents abuse. It resets every day.

Tips for better results

• Flat receipt, no creases and no fingers in the way.
• Good light and no shadows across the paper.
• Fit the whole thing in the photo, total included.

Groups, expenses and balances

How do I invite someone to a group?

From the group, share the invite link. Whoever opens it sees the group name and can join. The link expires after 30 days and you can regenerate or revoke it whenever you want. There is also a friend link, so someone can add you directly without joining a group.

I joined a group and someone with my name was already there

That’s an “account-less contact”: someone added you by name so they could split with you before you used the app. When you join you can claim that contact and inherit its expenses and balance instead of starting from zero.

My balances don’t add up

Balances are never stored: they are always recalculated from the expenses, the splits and the settlements on record. When something looks off it is almost always an expense with the wrong split or a payment that was never recorded. Inside the group there is an explanation screen that breaks your balance down into what you paid, what you spent and what you paid back.

Does Krumbs move the money?

No. Krumbs only keeps the tally. It is not a bank or a payment institution, it does not process charges or transfers, and it charges no fees. Payments between you happen by your own means.

Expenses in another currency

You can record an expense in a currency other than the group’s; it is converted using reference exchange rates from a public service. They may not match exactly what your bank applies.

Notifications and permissions

I’m not getting notifications

Check that you granted notification permission when the app asked. If you denied it, change it in your phone’s notification settings, under Krumbs. Only people you share a group with, or who you have added, can send you alerts.

Why does it ask for camera and photos?

The camera, to photograph receipts. Photos, to attach an image you already have. They are not used for anything else and you can revoke both from your phone settings; you simply won’t be able to scan.

Privacy and security

Who can see my expenses?

Only the people in the group the expense belongs to. Your email address is not visible to anyone but you. Krumbs does not access your address book and uses no analytics, advertising or tracking of any kind.

I found a security flaw

Write to soporte@lancelot-project.com with the details before going public. We reply and fix it as fast as we can.

Someone is using Krumbs to harass me

Tell us at soporte@lancelot-project.com. Every report is reviewed and we can suspend the account responsible.

Availability

Krumbs is on the App Store and on Google Play. The download links are also on krumbs.lancelot-project.com.