Private data with online compulsion

I have a few days ago the BS430 Amazon erworben.Bei the product description I assumed that I can get a clear analysis using smartphone and associated APP. Technically should go easily, but I do not even get to the Bluetooth pairing, because previously the online registration you will be forced to create an online account to park his or her personal data in their cloud required ist.Nach examination of the product + app, which I do not at all passt.Ist it not be possible without online account to use the above functions courted. The product is therefore not usable in the form suggested.