App crashes as soon as I try to open it. I have updated the app and this is still occurring, causing the app to be useless. Have to use the web version which is a bigger hassle when on the road and trying to upload receipts and track expenses as I go. One month later, app is updated to latest version and phone is updated. Still can't even get app to open without crashing.

A little confusing to use and the filtering is horrible! It forgets what you've chosen if you change one parameter. You cannot rely on Concur to show you correct hotels based on your filtering and a lot of times you have to secondarily click on check price then come to find out it's either out of your price range filter you set or there is no availability on the hotel. Filtering should be sticky during your search. GPS auto location has not worked in years and you always have to manually enter

If I could give this negative stars I would. Have to use it for my work, and the process for entering expenses is so frustrating. You have to save a million times. You have to enter the expense type, save it and only then can you add attendees. You sometimes lose your progress if you enter the expense type after the other details. The calendar defaults back to the last expense you saved, even if you haven't been back in the app in a week - why not just default to THE DAY YOU'RE CURRENTLY LIVING?