Side by side

Avast One vs Dr.Web KATANA

Avast One

8.9#1 in antivirus softwareFree plan

Free planAndroidiOSExtensionmacOS

7.0#44 in antivirus softwareFrom $9.30 a year

Windows

Fact	Avast One	Dr.Web KATANA
Company history	Avast says Pavel Baudiš and Eduard Kučera founded Alwil in Prague in 1988, renamed it Avast Software in 2010 and joined Gen in 2022.	Doctor Web’s company history says Igor Danilov established Doctor Web in 2003.
Device limit	30	1
Founded	1988	1992
Free plan	Yes	No
Protection scope	complete security	antivirus
Ransomware protection	The free tier includes ransomware protection that restricts untrusted apps from changing protected folders.	The product detects unwanted file modification and prevents malicious objects from injecting code into other processes, including activity typical of encryption ransomware.
Support	Official help provides contact options, account help, forums and an academy.	Doctor Web advertises 24/7 technical support and offers users a support request form and ticket creation.
Supported platforms	Windows,macOS,Android,iOS	Windows
System requirements	The product requires internet access for updates; Windows support covers Windows 7 through 11, while Mac requires macOS 10.14 or later, Android requires 9.0 or later and iOS requires 15 or later.	The product page lists a minimum of 100 MB RAM and approximately 150 MB of free disk space, plus additional temporary installation space.

You want what its maker publishes above — check its page for the details.

You want what its maker publishes above — check its page for the details.