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Your event companion — powered by Callstack
Plan your day, connect with people, and explore events—all in one place. No login needed. Just create your badge and you’re in.
React Universe App helps you get the most out of every tech event. Whether you're attending a conference or meetup, this app makes it easy to connect, explore, and stay informed. No passwords or accounts — just sign up with your email and go.
What's New in the Latest Version 1.0.3
Last updated on Sep 4, 2025
We fixed bugs, which we found on the first day of the conference
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React Universe
App 20251.0.3 by Callstack
Sep 4, 2025