Over 10 Million Downloads! SkyPhone is a simple and free calling app. Just listen and you'll soon notice the high quality sound. You can start using the app without having to register your personal information. Enter your profile and share your SkyPhone number with friends and family. SkyPhone users can enjoy the clear, high-quality voice calls on SkyPhone for FREE. Simple UI ! The Allow Contacts Only feature blocks calls from unregistered contacts. You can connect only to those who you want