Word
Free tier
A free tier is the free level of a paid service: genuinely free, and shaped to be enough to try and not enough to run on.
Also called: free plan, free level
You will meet the word more than once here and the right answer is not always the same. A free level is fine for trying something. It is not fine for the database your business data sits in.
Read what a free level does at its edges before it does it to you: expiring after a set time, pausing when nobody visits, or wiping what it was holding.