You showed the app to a bunch of people and asked what they thought. Here’s what i’m 100% sure happened. Invariably every one of them had something to say - wanted something about the app changed - a color, an icon, a navigation issue, and most probably an extra feature your app didn’t have. Not one - NOT A SINGLE ONE - must have told you your app looked fine as it were. And almost all the people who gave you some or other feedback must have used your app for no more than 5 minutes … the app that you spent months crafting.