---
title: "December 2021 - Build 1.0.1"
slug: "mobile-checkin-app-build-101"
tags: ["Mobile Check-in App", "Release Notes"]
updated: 2026-02-09T17:46:56Z
published: 2026-02-09T21:06:19Z
canonical: "docs.blackthorn.io/mobile-checkin-app-build-101"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blackthorn.io/llms.txt
> Use this file to discover all available pages before exploring further.

# December 2021 - Build 1.0.1

## Bug Fixes

- After access to an Event via the Mobile Check-in app has been revoked, the user will no longer be able to see the Event that they previously could access.
- When using the Mobile Check-In app, users can now check in a Session Attendee by swiping from the right to the left on the Attendee’s name and undo a checked-in Attendee by swiping from left to right.

## Enhancements

- To manually add a walk-in Attendee to an Event, users can click the **+ button** on the Attendee Listing page in the Mobile Check-in app and enter the Attendee’s  **Salutation**, **First Name**, **Last Name**, **Email**, **Title**, Company (**Account Name**), and **Country**.
- Mobile Check-In app users are now able to log in to a sandbox or production org from the Mobile Check-in app.
- When using the Mobile Check-in app to check in Attendees, users will now see the list of registered Attendees sorted by last name. Swiping right to left and clicking the **Check-in Action** button will check in Attendees. Swiping left to right and clicking the **X button** will check out a checked-in Attendee.