Vierumäki Friends mobile app is a friend who will guide you and give you great benefits. The app lets you know what's happening in Vierumäki, sign up for exercise classes, and reap the rewards and offers. With the loyalty card found in the application, you can become a Vierumäki Friends loyal customer. Get the most out of this app! - Become a loyal customer for free. As a loyal customer, you get the best benefits and the most interesting offers. Discover the worthwhile benefits of products and