spacelaunchnow

That essentially means the launch date is subject to move, based on un-confirmed/un-reliable sources, etc - GO for Launch means there is publicly posted information from the launch service provider or some other first party source that confirms the date.

Most launches end up being No-GO until the week or so before.

There is a small staff that voluntarily help source data, essentially as easy as watching Twitter. Not really possible to automate due to it being journalistic in general.

Yes, in both iOS and Android apps you can filter notifications to be only from your preferred locations or launch providers.

I do already have a YouTube - however maintaining the application is a full-enough part time gig. I plan on trying to grow the YouTube to the point I can hand it off and revenue share with a creator.

Woah - didn't expect to see this here - appreciate the OP sharing here.