What’s the worst app you use every day?

For me, it’s MyFitnessPal, which is clunky and broken and requires a force quit multiple times per week. But it also does what I need and integrates with my trainer’s app.

@lexfri Every app I use has some small problem(s). If it made it to ‘worst,’ I replaced it. But if I have to pick its a tie between all the apps for my daughter’s school and/or doctor (which I don’t use every day, to be fair.)