MobileLegacyAround since 1984
Objective-C
The older programming language iOS and macOS apps were originally built in, before Apple introduced Swift — still found maintaining older, established iOS codebases.
Think of it like
Like an older but still-load-bearing wing of a building — nobody's designing new wings with it, but plenty of real buildings still have one.
Junior or senior?
Junior sounds like
Hasn't written new Objective-C recently but doesn't say so.
Senior sounds like
Can say clearly when their team last wrote new Objective-C, versus just maintaining what was already there.
Ask them
“When did your team last write new Objective-C code, versus just maintaining what was already there?”