Glasswire
I learnt this app from Linux Tech Tips.
It's actually pretty good.
As of now, only Windows and Android are supported, and Mac support is coming.
There is free version and paid version.
Free Version Functionalities
- Firewall
- What IP is each app communicating with
- Which app is communicating with internet
- Network Data Usage Monitoring (data used by each app)
Paid Service
https://www.glasswire.com/buy/
- Longer (Graph) History
- Remote Connection
- Monitor Remote Servers
- WiFi Evil Twin Detection
- Get alerted when new WiFi hardware appears nearby with your same network name, and also get alerted if your WiFi network suddenly loses its password.
- Who’s on your WiFi or Network?
- Firewall Profiles
- More Themes
- Lockdown Mode
- Lock all network connectivity
- Ask to connect
- Refuse new network connection before approval