Founded in 2014, GlassWire makes both firewall software and cybersecurity applications for Windows and Android. Their flagship firewall application is free on Google Play, and GlassWire’s paid versions monitor your network traffic in real-time to detect if anybody is trying to access your data without your consent. If you have to step away from your device for an extended period of time, then GlassWire’s Lock-Down Mode blocks all network connectivity. All of their subscriptions have the same functionality, but the Elite version comes with unlimited remote monitoring.