Where can I write a review for an accounting app? I would like to give them positive feedback? ty

I have been using an app called accounting homework apps. It has helped me a lot and I met the owner of the company recently and told her I would post a review on her behalf. I have no idea what sites review apps esp an accounting homework app. I know this is a strange question but does anyone know? Thanks! :) Margo

This is the site http://www.accountinghomeworkapps.com