The easiest way to delete the app on an iPod touch, iPhone, or iPad is to do the following:
Tap and hold the Conference Attendee app icon until all the app icons begin to shake and those that can be deleted display an X on the top corner of their icon.
Tap the X on an app and a window pops up asking you to confirm the deletion. Tap Delete and the app is removed.
When you're finished, click the Home button to stop the icons from shaking.
Reinstall the Conference Attendee App on an Apple device
Once the app has been completely removed, do the following to reinstall the app:
Tap the App Store
icon. Tap on the Search option at the bottom of this app, tap the search bar at the top of this app, type in a search for “conference attendee.”
Be sure to tap the Download
option next to the Conference Attendee app to download and install the app. Done! Tap the home button to exit the App Store and then tap the
Attendee icon to login to the Conference Attendee.
Note: the Attendee icon may appear on a second screen.