Database Options

If I wanted to connect my app to a database (not hosted out of, then what are my options ?

  1. Only Postgres ?
  2. I can’t connect to a MySQL database ?
  3. What are the limitations of Postgres under the free resources tier ?
  4. If I choose sqlite3, where does it get stored ?

A good place to start is with the Databases & Storage guide. This includes Volumes (for sqlite3) and recommended storage providers (for Postgres, MySQL, and an S3 compatible object store).

The Fly App Pricing page provides information on Free Allowances.