This app use to block unused incoming calls. Add Mobile Number to the block List to block incoming number. In that there is a two way to block number. 1. Add full 10 digits Mobile number you want to the Block is add to that list. for example, 1234567890 Add to block for block that number. 2. Add Start With means you enter the start digit of the Mobile number you want to block that whole series all number is incoming is block. for example, If 144 series add as a block Number then the all incoming number is block whose starting digit is 144 number.
In that start with number 144 add to block all number which have starting digit 144 But In that on number is Except in that case So, you want to enter that Number in the Except Number List to Do not Block that Number in that series.
for example, 144 add to block But 1442545124 Add to Except list then that block all number starting with digit 144, But this App Allow to Except that number you Add to Except List.