I built a similar open-source thing a few months ago which pulls in a lot more information and you can even control things on the store through Slack commands: https://appstoreslackbot.com
Currently, it only works for iOS and is pull-based.
How many users are using that service? How come you decided to make it 100% free?
Your website is beautiful btw! I thought about building my tool as a Slack bot but thought that then it would be too limited to only Slack. I intend to add other types of workflows in the future, such as webhooks (to trigger special workflows in your CI) and a RSS feed :)
I'd love to connect with you if you wanna work together on something! t.me/rogerluan
We built this in about a week as it mostly piggybacks on a critical piece of infrastructure behind https://www.tramline.app, and hence kind of runs by itself.
So we didn't really care for adding pricing to it. Tramline is what we _really_ build :)
The service itself just currently happens to respond primarily as a Slackbot, but that's just an implementation detail and can be tweaked.
Would love to connect, let me ping you on telegram!