Is .app (one of) the best domain extension for app developers and launch an app?

[PatrickV]

Or are there better options if .com is taken already for launch a new application?

Thanks a lot!

GLTA

 

[PatrickV]

I mean for a new mobile application. Is a website really necessary for a new app to launch and be found by search engines?

 

[Hypersot]

One other ext that startups use a lot (or used to, haven't followed the trend) is .io
I have encountered .io websites in the past that the extension looked really nice.

Another one is also .ai (if the app focuses on AI)

edit: my answer was directed to your OP. I'm not sure what to answer on your last question.