Ah. The e-mail clears it up: Hobby — Run a small app 24x7 with the Heroku developer experience for $7 per dyno per month. Multiple worker process types for m

Ah. The e-mail clears it up: Hobby — Run a small app 24x7 with the Heroku developer experience for $7 per dyno per month. Multiple worker process types for more complex apps. Run a maximum of one dyno per process type. 512 MB RAM.