When comparing avast! vs F-Secure, the Slant community recommends avast! for most people. In the question“What is the best antivirus software for the Mac OS?” avast! is ranked 3rd while F-Secure is ranked 5th.
Ranked in these QuestionsQuestion Ranking
Pro Decent anti-virus protection
Pro Good malware detection
Full scan seems very thorough compared to other antivirus/malware software.
Pro Intuitive UI
All the tools are accessible within the one app versus some of the competitors where they have separate apps for each tool.
Pro A trial version is available
30 day from date of first installation / launch of f-secure.
Con Tries too hard to sell you the paid version
Con Makes your system slower than usual
Even though scans are not being run in background, it will slow your system.
Con Opt-out installation of Google Chrome
These advertising tactics are simply unacceptable
Con Detection rate isn't too solid
Avast! is not the sort of antivirus product to give you peace of mind. In practice, it does miss some malware every now and then. You'll need backup virus protection, which raises the question why you should get Avast in the first place.
Con Too noisy
Avast! has sounds turned on by default. It also has a lot of blinky features of questionable use.
Con Expires after a year leaving computer exposed to new viruses
Expires and stops updating after a year after which the user's computer may become infected by new viruses not covered by existing patterns.
Con "Smart Screen" feature
When running an unknown application, avast will run it wrapped in a sandbox environment first for scanning, then kill the process and re-run it again. A lot of applications do not like this.
Con Can't quarantine malware
For real-time or manual scanning, if F-Secure finds something, it will move suspicious files to the trash, not ideal.
Con Firewall gives false sense of security
The firewall f-secure includes only has two options, allow all and block all. Non tech savvy people may think they are protected more than they really are because the word "Firewall" is somewhere in the software dialogue.
Con Browser extension uninstallable
To uninstall the browser extension you have to completely uninstall f-secure.