Help functionality : helps a lot in finding names behind the unknown numbers. You can search here anyone’s mobile no. and most of the you got accurate results.
Ease of use : it’s very easy to search anyone’s no. here . Just go on search option and type the no. You want to know their details.
Ease of installation : very easy just go on play store and type TRUECALLER and install it after installing it you just need to permit it to access your contact details but don’t worry it’s safe.
Features and functions : you got the right app if you are puzzled in contacts and it also remembers your call history.
Service and support : I never tried this as I don’t have faced any problem while using it.
Thanks.