On one hand apps are convenient. It's nice to have my flight info and boarding passes on my phone when traveling. It's nice to confirm my transaction with a finger print instead of writing codes that I get in SMS. It's nice to buy a ticket in my app rather than stand in like to some machine. But it's only nice when it works without tracking and mandatory google accounts. More and more apps are tied to google but since almost everyone is using them the alternatives (like websites) are slowly disappearing.