Kingpin Browser - Kingpin private browser is full-featured browser with incognito mode and adblock always turned on. It does not remember the history, passwords, or cookies.
Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
iTop VPN Browser - iTop VPN Browser is a VPN browser to defend against online threats. Surf the web safely and privately with the most secure browser with built-in VPN.
Panda Antivirus for Mac - A bare bones malware and anti-virus scanner.
Roccat Browser - Roccat is a revolutionary fast, secure and feature packed browser designed for OS X and iOS, which...
Clam Xav (desktop) - Specifically with Clam Xav Sentry configured to scan inserted disks.Please read global comments on this question for an explanation of why desktop apps are being recommended for virus detection on ios devices.