Checked today Diarly on mac thru setapp and was notified about new version.
Now Diarly supports for x-callback-url, you can append to specific note for example via drafts. I read that some users on mpu forum wanted append to Day One entry, but it still not possible I think.
Also if you have setapp, you don’t need extra seat to use iOS versions.
Seems like attractive or even better alternative for Day One.
You’re sure that you don’t need the Setapp iOS/iPadOS per-device subscription to use Diarly on those devices? That would be an exception to Setapp’s recent per-platform subscription scheme.