What are Heroku traffic costs? [closed]

Question

I can't find any information on what are the traffic costs on Heroku.

For example what does a traffic of 1 gb cost me?

Answer 1

I can't find an official reference but I am almost sure they are free.
This is one of the thing I like with Heroku. In my opinion they overcharge the rest of their services but the free bandwidth is very nice.

They do however have a soft cap their policy:

Network bandwidth must not exceed 2TB per month.