Amazon echo app needed?

I’m about to get an Amazon echo and wonder if I need the mobile app to get it to work with openHAB. The reason I ask is that the app isn’t available in sweden, so can I set it up without the app?
And if I can how do I do it?
Or if I must have it, can I get it somehow?

I bought Echo Plus 1 week ago and the connection with openhab was very straight forward. No need to use the mobile app

Thanks for quick reply. Just bought one, hope it is easy to set up.