AWS EBS Billing

Hi all, followed the guideline to implement Metabase on AWS EBS along with a RDS instance of Postgresql. However, my billing has gone up by $30 per month because of this setup. Are others experiencing the same? What can I do to optimize this cost?

Other tip is a annual subscription ( but you can simulate your AWS cost using

If you install postgresql along application in same EC2 instance, probably will “cut” RDS cost