What’s your biggest frustration with calorie tracking/fitness apps?

I’m doing some research and wanted real opinions from actual users instead of just app reviews.
If you’ve used apps like MyFitnessPal, Lose It, etc:

What’s your biggest frustration with them?

What makes you stop using them?

What would your “perfect” fitness/calorie app do differently?

For me, manually entering every single ingredient gets annoying fast. Like sometimes I just want to say “I ate a bowl of spaghetti” instead of entering noodles, sauce, cheese, portions, etc.
Curious what everyone else thinks.

TL;DR: What sucks most about current fitness/calorie apps, and what would make you actually keep using one?