For future reference I think you can scale an app to 0 without deleting it using heroku ps:scale web=0 worker=0. I had to remove scheduler from three of my app

For future reference I think you can scale an app to 0 without deleting it using heroku ps:scale web=0 worker=0. I had to remove scheduler from three of my apps too. It's frustrating but it did make me realise how trivial some of them were.