Easy to use app. Great service and very reasonable rates. The fact they now offer Bitcoin transfer to lightning instantly and super cheap makes this the number 1 app to buy Bitcoin with. Their DCA buying function allows daily purchases and the app provides great insight into your purchase history. What drew me most to AmberApp was that they focus on Bitcoin only which shows focus and allows them to provide exceptional security and service. Highly recommend Amber for anyone wanting to buy Bitcoin in a simple and secure way.