Hate It Or Rate It | F-Droid - Free and Open Source Android App Repository

I just found Hiori. I was wishing for such an app for a long time. Finally, I can take a photo of a product and rate it such that I won't buy it in the future again.

It happens very often that I buy something again because I forget it. E.g. tofu in a carton where you can't see what's inside.