Descriptions : With the White Calling app, you can make international calls at low cost that you can rely on.
With the White Calling app you can call any phone number. So the reliability is excellent and the other person doesn't need to have the app to answer a call. In short, it's the easiest and most reliable way to call friends and relatives around the world.
Features :
+ Lowest international call rates
+ Mobile + Charge airtime
+ Excellent call quality and reliability
+ Really easy to use
+ More FREE credit when you invite friends to the app!
+ Call over WiFi
+ Great if you have a lot of monthly data
+ You can add your card PIN in the app to use your card credit!
Required Android Versions : KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]