No mention yet of the very well built iOS app beorg https://beorgapp.com/ Org-mode files are synced via Dropbox, iCloud, or WebDAV. Having a Siri shortcut to just tell Siri to add something to my TODO list would be a nice feature. Glancing at the shortcuts API, there is an append to file feature. I might have to try to roll my own.
Ultimately I decided to build org-web anyway because I wanted something a bit closer to the metal, in a way. My impression of Beorg was that its bit higher level, whereas org-web provides some first class support for org features while still letting you edit the raw text if you'd like to.
To be clear, I think both styles have their advantages. org-web's style isn't better, its better for me.