# I don't understand free-tier!??

**URL:** <https://community.fly.io/t/i-dont-understand-free-tier/5145>\
**Category:** Questions / Help\
**Tags:** postgres\
**Created:** [May 13, 2022, 12:35pm UTC](https://community.fly.io/t/i-dont-understand-free-tier/5145 "2022-05-13T12:35:26Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![lubien](https://sea1.discourse-cdn.com/fly1/user_avatar/community.fly.io/lubien/32/41919_2.png) [@lubien](https://community.fly.io/u/lubien)\
**Post date:** [June 27, 2022, 11:47am UTC](https://community.fly.io/t/i-dont-understand-free-tier/5145/5 "2022-06-27T11:47:12Z")

</div>

> [@abeeshake](#):
>
> Run 3 [shared-cpu-1x](https://fly.io/docs/about/pricing/#compute) VMs with 256MB RAM full time.

This is true

> [@abeeshake](#):
>
> 1. one 512MB RAM and one 256MB RAM full time?

This is not quite right. The 512MB RAM VM would create costs as you’d have an extra 256MB (256MB base + 256MB extra) and we’d bill for the extra. We bill memory per VM.

Also thanks @greg for helping out 🙂

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