> for free forever.

It's not "forever", it's "for as long as we want to offer it", they can stop offering it or terminate you whenever, and if you go under any of these for 7 days they will "reclaim" it:

> CPU utilization for the 95th percentile is less than 20%

> Network utilization is less than 20%

> Memory utilization is less than 20% (applies to A1 shapes only)