Could I send someone a link to my iOS app and have them record themselves using it for like 10 min? And get a little feedback from them? How much would that cost?
It would probably cost about $5-15 (it depends on how much you would pay the participant, I would recommend being generous for a study like this).
If you'd like to tell us a little more about your goals, we can get back to you with some more specific information: https://prolific2.typeform.com/to/aczPoI