01 - كاشف الارقام is a caller ID app developed by EZO01 for Android users. It allows users to search for the identity of the caller for free by entering the phone number or the name of the caller. The app compares the entered information with a huge database of millions of records.

What sets this app apart is that it doesn't require any payment or special permissions. Additionally, users can perform an unlimited number of searches without any restrictions. This makes it a very useful tool for those who receive frequent calls from unknown numbers or want to identify a caller before answering the phone.