stop a heroku app code example

Example 1: how to stop build in heroku

heroku plugins:install heroku-builds
heroku builds:cancel -a YOUR_HEROKU_APP_NAME

Example 2: how to stop a heroku app

$ heroku ps:scale web=0
Scaling web processes... done, now running 0
//once ready to go back online:
heroku ps:scale web=1

Example 3: turn off heroku app

From The Heroku Webpage
Dashboard => Your App Name => Resources => Pencil icon=> Flip the switch => Confirm