With InJoy Firewall™ 4.0 you can say good-bye to old-generation Firewall solutions that were difficult to implement, manage and measure — InJoy Firewall™ is different...
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Vallum Alternatives
Vallum is described as 'Monitors application connections and offers to pass or block these. It can be used to increase privacy or to transparently protect non-admin users from unwanted connections on multi-user macs' and is a Firewall in the security & privacy category. There are more than 25 alternatives to Vallum for a variety of platforms, including Windows, Linux, Android, Mac and iPhone apps. The best Vallum alternative is simplewall, which is both free and Open Source. Other great apps like Vallum are GlassWire, BiniSoft Windows Firewall Control, Minimal Firewall and TinyWall.