According to the antivirus report, Who's Calling? Pro doesn't contain viruses or any kind of malware. Actiwerks is the official developer of this application which can be found in the Communication category. Users rated the app 4.3 on Google Play.
Who's Calling? Pro has been downloaded and set up by over 5K users and its latest update was released on April 1, 2014. The statistics show that this application is popular mostly among Lava and Samsung users. You are able to get the .apk setup package of Who's Calling? Pro 1.0.5 free of charge and take a look at users' reviews on Droid Informer. The file size doesn't exceed 2 MB and the app runs flawlessly on Android 2.2 and higher.