# Check in attendees

To begin scanning guests' wallets or tickets, make sure you've downloaded the tokenproof Verifier app from the [iOS](https://apps.apple.com/app/tokenproof-verifier/id1605810824) or [Google Play](https://play.google.com/store/apps/details?id=xyz.tokenproof.verifier\&hl=en\&gl=US) stores onto your mobile device and follow the set-up guide to get started.