[andrewmunsell]

My bet is they are set up as three apps, in which case, you get 1 free dyno per app (all of them).

[lmirosevic]

Sorry typo. 7M hits per day. It was tested with 250 concurrent users, and page load times consistently stayed below 300ms (measured end-to-end).

Andrew is right, we set up three different apps and so each is free.