>> You can always add a "get" prefix or "app" suffix (or a bunch of other options). If you are sold on a company name then by all means, grab the domain.

I totally agree, you can always "upgrade" later to a better, shorter, or more appropriate domain later. The TLD doesn't matter, either. The only potential exception to this would be if you're building something "local", whereas you'd want to get the ccTLD domain if you're targeting users in one particular country.