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Case Study: Tome migrates tens of millions of users off Auth0 to Stytch

Tome Case StudySourced & dated by Case Study Desk
Key facts · TL;DR
Company
Tome
Industry
Software — AI
Challenge
Auth0 reliability, support, and multi-tenant limitations were causing production issues for a fast-growing platform.
Headline result
Tome moved tens of millions of users from Auth0 to Stytch in under a month with zero downtime

Key results

<1 mo
Migration of tens of millions of users off Auth0
zero downtime
2-3
Engineers reallocated to core product development

The challenge

Tome, an AI-powered storytelling and presentation platform serving more than 10 million users, faced reliability and performance problems on Auth0, including production outages, alongside limited flexibility for its multi-tenant architecture. Documentation gaps and support responsiveness added to the difficulty of maintaining authentication at scale.

The solution

Tome migrated to Stytch's B2B authentication platform, using its multi-tenant model, account deduplication and user-account linking, and device fingerprinting for fraud prevention, implemented through the Node backend SDK with a custom front end.

We migrated tens of millions of users from Auth0 to Stytch in less than a month. It was far and away the easiest migration I've ever worked on.

KP
Keith Peiris
Co-Founder and CEO, Tome

The results, in context

Tome migrated tens of millions of users from Auth0 to Stytch in less than a month with zero downtime. Following the move, the team reallocated two to three engineers from maintaining authentication to core product development and new features.

Products used

Stytch B2B AuthenticationStytch Device Fingerprinting