Login to bubble.io and go to myapps

Find out the right app and then click the pencil icon

If you see an upgrade warning, make sure you cancel it!

Go to Settings

App plan tab

Select the plan

Cannot use the hobby plan as it doesn't allow custom domains and backend workflows which are usually needed for app.
We usually recommend personal to begin with.

Confirm!

We have probably built something similar before, let us help you