I personally recommend against investing in this app. It was great many years ago, but updates slowed to about once a year at best, often longer. Sites broke, the author ruined markdown support, so embedded videos were broken.

There are just also free options that do a better job. I personally use Mealie, but have also heard good things about Tandoor. The export option worked well enough to get into Mealie and I never looked back.

I do miss how good it was at converting between different measurement sizes though.