- Since Heroku free version use up to 500MB size, you should carefully chose your depenencies. Thus we are using tensorflow-cpu which is 180 MB
- Booting time takes up to 50 seconds because of downloading CNN weights from dropbox server.If the heroku server goes to sleeping mode, this will cause temporary hanging on server.
- In free heroku servers detection is up top 20 seconds.
- In free heroku servers booting is up top 50 seconds.