How do we log in without giving our nsec away on mobile ?

I'm one of those lucky few for whom 0xChat never worked... Signal and Telegram are good for community building until something better comes along...
There is also Chorus, which is a nice (and newer) Nostr app: https://chorus.community/
I've started some communities here but haven't done much with them...yet...
How do we log in without giving our nsec away on mobile ?

You can always spin up a separate Nsec for that app and just let your friends know! ☺️
Download my Safari extension, Nostash, and plug in your nsec there
https://apps.apple.com/app/nostash/id6744309333
Then, log in with “Extension”
You log into things on mobile? 😉