An F-Secure Internet Security subscription lets you install security software on Windows, macOS, Android, and iOS devices, but it’s lacking in features compared with the best cross-platform competitors.
Trend Micro Maximum Security offers protection for Windows, macOS, Android, iOS, and even ChromeOS devices, though you get a richer set of features on Windows and Android.
G Data Internet Security has all the components you expect in a suite, plus backup. However, the quality of those parts is uneven and has improved little in the last few years.