What if I forget to logout from the Barclaycard app, will it automatically log me out or timeout?

If you exit the app by pressing the home button or if your screen times out, then by default the app will remain logged in for 1 minute, if you have not returned to the app within 1 minute then it will logout automatically and you’ll need to log back into the app when you open it again, this can be changed in App log-out time setting. The app also has its own timeout which kicks in after three minutes if you remain on the app but are not doing anything in it.