In the Free Allowances Section of the pricing page, it says that we can “Run 3 shared-cpu-1x VMs with 256MB RAM full time”. I have a very basic personal site, with practically no visitors right now. Even the website is text only with very basic HTML and no CSS or JS framework.
I am currently running my app with shared-cpu-1x, 256MB, 1 core CPU - which is fine, but I am thinking how much can I scale up without incurring any extra costs. If I am allowed 3 such machines, can I scale to 512 MB RAM under free allowance?