Why do most people quit fitness apps after 2 weeks?

Most fitness apps don’t fail because they lack features —
they fail because people stop using them.

After 2–3 weeks, motivation drops and the app becomes just another chore.

I’m experimenting with turning workouts into a progression system:
levels, unlocks, and a more game-like experience.

Curious to hear from others here:

👉 What made you stop using fitness apps in the past?
👉 And what would actually make you stick to one?

Would love honest feedback — building this in public.