Nope. You need an Nsec Bunker to use fediverse clients.

On Android, some apps like OxChat support the use of Amber

https://github.com/greenart7c3/Amber


Otherwise, exposing your nsec to the app directly is the only option. 

 *As in any other nostr app (Damus, Amethyst. etc) 

 was hoping theres an easier way so we can get mastod/fedi people switch to ditto/nostr 

 unfortunately not, and there's not much that can be done to improve that friction aside from expanding support for local device nsec signers