My venue currently uses a mobile device with the Gateway mode. Can this be used for SE check-outs? June 23, 2022 12:29 Updated Yes. The SafeEntry (Business) App can be toggled between check in/out modes and can be used for check-outs. Related articles How close should users hold the TT App or Token to the SafeEntry(Business) app for it to be detected? Where can I see a step-by-step guide to setting up SafeEntry?