The most compatible devices with the MyOperator and Call Recording App include devices from  manufacturers including “Nexus”, "Samsung", “Motorola”, "Lenovo" and “OnePlus”.

Devices from other manufacturers including, but not limited to, “Micromax”, “MI”, “Vivo”, and “Karbonn” are not fully compatible with the app. This happens because of the installation of custom android version on devices from these manufacturers.

Therefore, the data provided on the devices that have a custom android version installed may not be 100% accurate because of their compatibility issues.