I did a little googling and it looks like @brandondove commented on an open issue with Sequel Ace:
If I understand the thread correctly, there’s a few things going on:
- Sequel Ace isn’t able to connect to a database via sockets because it is running in sandbox mode
- Sequel Ace is running in sandbox mode so that it can be listed in the App Store
- TablePlus is able to connect over sockets because it isn’t running in sandbox mode – it’s something you manually download and install from the internet.
I’m not quite sure where to take this addon since connecting to sockets isn’t something that the Sequel Ace devs are able to take on at this point (at least until they aren’t distributing via the App Store).