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ratcloud is a small set of apps one person runs for friends: what it is. One account works in every app, and you sign in with a passkey (Face ID, a fingerprint, or your password manager), never a password.

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Lowercase letters, digits, and . _ -. It is permanent: it is how friends find you in every app. Your display name and picture can change any time.

No passwords, ever, and no email. A passkey lives in your device or password manager and works only on this site.