"I made an app, and now I need users"

This is the phrase I hear over and over again. We are all making apps, and we all want users to come and sign up, review, upload and just generally pay attention to them.

I just made an AI Thrift Store for AI-generated art outtakes. The idea is that creators will upload their weird outtakes and maybe someone else can use them.

But I need people to register and upload images! And other people need me to register and review their sites.

What if we started trading short spans of attention? For example:

I will create an account and use your app for 15 minutes, and give you feedback, if you will make an account on mine and upload 3 images?

We could start an "15 minutes of attention" trading group. Anyone interested?