4G&VoLTE Speed check & booster application using following permission :
android.permission.READ_PHONE_STATE. -- This permission is using for accessing the cellular information of your phone,like which network operators name and details, and all, also we have to show the details like how much data is used,which apps are used the data etc.We are using this details for just display purpose only, means want to display to the users. we are not sending any data to our server,also we are not sharing any data with anyone, all the details which we accessed using this permission are used for just display purpose inside the app. and this is 100% safe and secure .