* What app do you use?
* What are the features you use a lot?
* What are the most cumbersome features you wish they didn't exist?
* Have you ever been in a situation when you are using an app and you say "I wish I could do that"?
* Have you tried other apps before using the actual app? Why did you quit?
* Are you using different apps to organize a workflow? Tell me about it.
2. The traumatized user: A person who once used an app (or several apps) and then decided to never use an app anymore.
* What drove you to quit the app?
* How do you manage your time without the app?
3. The person who never used an app:
* Why you didn't consider the option?
* Do you have some particular fear/need (privacy, accessibility)?
Feel free to talk about anything that I didn't ask above. I want to listen to you.