Download Apps on Grundig Smart TV?

I recently bought a Grundig Smart TV and now I would like to download an app (Twitch) for me!

I know someone, (another Smart Tv) who can do that, but I'm not sure if it's mine too?

Ask this person, who can tell you for sure.

He has the store already so and the apps on the Smart TV

This is possible because it is a Smart TV

Check if there's a special button somewhere. If not then look in the menu.

Look in the manual how it works. It should basically work, because it is a Smart TV.

OK thanks