mbin is probably the closest to what you want. Its supports both threaded content (lemmy) as well as microblogging (mastodon) Here is a list of servers https://joinmbin.org/servers and interstellar is the mbin app.

[–] [email protected] 12 points 2 weeks ago (1 children)

Honourable mention to piefed.social / pyfedi which can do both as well.

However, it's newer than mbin and I'm not sure about mobile apps working with it.

[–] [email protected] 9 points 2 weeks ago (1 children)

Piefed doesn't have an api, so no 3rd party client. You can use the PWA.

[–] [email protected] 1 points 2 weeks ago (1 children)

Someone creates a version which adds a Lemmy compatible api to pyfedi and tested out a couple of mobile apps against it, https://codeberg.org/rimu/pyfedi/issues/13#issuecomment-1814982

So it's not impossible - but it's also very much a YMMV thing (I suppose it's really still only for developers atm)

[–] [email protected] 1 points 2 weeks ago

If piefed decides to create an api later, I would prefer they did their own thing and try to be lemmy compatible. Looking at misskey, I think not forcing api to be compatible with the more popular service has many upsides.

[–] [email protected] 8 points 2 weeks ago

Mbin also works pretty well directly using web.

[–] [email protected] 4 points 2 weeks ago

Thanks. Had to make a mbin account as interstellar with lemmy account did not display any comment. Still need to find out how to use mastodon inside of it xD