For as expensive as their subscription service is, I expect much better from their mobile app. At current, about one out of every two photos for expenses disappears right after I take it. Also, you cant bill an expense to a client via the app even if you have the overpriced subscription package that supports that function. I dont really use the app for anything else as I do all invoicing from the web interface (yes the desktop app for Mac is just as bad as the iPhone one). Lastly, using it only one week Ive already had an instance where the app didnt sync properly and lost some expense inputs.
You can tell quickbooks is resting lazily at their position of industry lead.