ClamTk is described as 'Graphical front-end for ClamAV, an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats. It is designed to be an easy-to-use, lightweight, on-demand antivirus scanner for Linux systems' and is a popular Anti-Virus app in the security & privacy category. There are more than 50 alternatives to ClamTk for a variety of platforms, including Windows, Mac, Android, Linux and Android Tablet apps. The best ClamTk alternative is Malwarebytes Anti-Malware, which is free. Other great apps like ClamTk are ClamAV, Avast Free Antivirus, Microsoft Defender and Bitdefender Antivirus.