[Flask] How to free hosting a Flask app with custom domain?

[Jin Li]

Dear all,

I want to deploy a Flask application in a free host (with MySQL for
data storage), and I want to use my custom domain to access the host.

I have tried Hosted Options at
http://flask.pocoo.org/docs/1.0/deploying/. However, they are either
non-free for Cloud database or non-free for custom domain redirection.

Can anyone have a recommendation for my free hosting of Flask
application with my custom domain? Thank you.

Best regards,
Jin