Rownd uses browser fingerprinting to ensure you stay signed in where you expect and saves your last sign in method for a quicker sign-in process if you're signed out.
Rownd combines user identifiers (like email address or phone number) with device metadata to form a unique, yet private digital fingerprint. If a user signs out, they'll enjoy a verification-free sign-in experience for a limited time upon returning.
Stardust's users are most likely to use their mobile app one week out of the month. Because of this, Stardust customized their sign in duration so that users are still signed in when they return more than a month later.
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