Shared expenses
TabUp
Who paid what on a trip or in a flat, in any currency, and the fewest payments that settle it.
Ask for access ↗kaicorplabs.com / account
04 Your account
One account. Six tools. Asked for one at a time.
The same sign-in works across everything here. Getting in the first time is a decision somebody makes about you, once: a person reads the request and answers. After that the tools are yours to take — ask for another and it opens straight away.
Ask for a tool
Pick the one you need. Every request goes through account.kaicorplabs.com, the one door for all of them: if you already have an account, the same door is how you ask for another, and you will not end up with a second identity.
Dynamic QR codes
QR-Forge
Print the code once and change where it points afterwards. Scans counted by day and country, never by person.
Ask for access ↗Large files
DocDrop
Multi-gigabyte transfers over links that expire when you say so. Downloading what somebody sent you needs no account.
Ask for access ↗One-time secrets
SecretDrop
A password or a key that deletes itself once read, encrypted in your browser. Reading one needs no account either.
Ask for access ↗Images
Pixelforge
Cut the background out of a photo, or turn a logo into a vector that scales to a billboard. Your images stay on this hardware.
Ask for access ↗Links
LinkUp
Short links that strip the tracking parameters and keep the ones the page needs. Nobody who clicks is identified — not even by us.
Ask for access ↗What happens next
Once, by a person
The first time: a name, an address, a password, and then it waits while somebody reads it — no automatic approval, no queue to jump. You get an email when it is done. Every tool you ask for after that is instant.
See what each one does →Already have an account
Your password, your second factor and the tools you are signed in to live in one place, shared by the six tools: account.kaicorplabs.com. Changing something there changes it everywhere, and signing out of a tool there ends its session at once.
Add a second factor
A passkey is your phone or computer proving it is you: a fingerprint, your face or the device PIN, or a security key. Nothing to type and nothing to phish. An authenticator app is the other option: a six-digit code that changes every thirty seconds. With either, a leaked password alone opens nothing.
Adding one takes a minute and does not replace your password: you keep signing in the way you already do, with the passkey or the code as the second step. You can have both, and remove them whenever you like, from the same page.
What we do not do
There is no open signup, no waiting list that exists to collect addresses, and nothing to upgrade to. Asking is a form and an answer, not a funnel.
And we do not make you wait twice. The question a person answers is whether to let you in, and it gets asked once; whether you then also want the file transfer or the QR codes is not a second decision about you, it is you picking up a tool. Access is still granted one tool at a time — nothing is handed over that you did not ask for — but asking, after the first time, is the whole procedure.
If somebody shared a file or a secret with you, you do not need any of this — open their link and it works. Accounts are for creating things, not for reading what was sent to you. What each tool stores, and for how long, is written down in its own page and in its source.