G Data AntiVirus is described as 'Anti-Virus solution for protection against viruses, spyware and phishing attacks:24.95 USD; Features: Protects all communication channels (e-mail (POP3 /IMAP), instant messaging (MSN, Yahoo, AOL, etc' and is a Anti-Virus App in the Security & Privacy category. There are more than 50 alternatives to G Data AntiVirus for a variety of platforms, including Windows, Mac, Android, Linux and Android Tablet. Most alternatives are Anti-Virus and Anti-Malware Apps. The best alternative is Windows Security. It's not free, so if you're looking for a free alternative, you could try Clam AntiVirus or Avira Antivirus. Other great apps like G Data AntiVirus are Avast Free Antivirus (Free Personal), Kaspersky AntiVirus (Freemium), ESET NOD32 Antivirus (Paid) and ClamTk (Free, Open Source).
Windows Security (known as Windows Defender Antivirus before Windows 10 May 2020 Update, Windows Defender before Windows 10 Creators Update, or Microsoft Defender Antivirus before Windows 11) is an anti-malware component of Microsoft Windows.
ESET NOD32 Antivirus is an innovative host-based intrusion prevention system that offers a comprehensive scanning solution. Most importantly, it will not slow down your PC, it's easy to use, and easy to install.
ClamTk is a 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.
Bitdefender comes with real time scanning that is called Virus Shield and an auto-scan mode that checks your system when the computer is idle. Game mode is fully automated and will be enabled when it detects a full screen application running.