ZoneAlarm Pro Alternatives

Block hackers and intruders from accessing your PC.

Advanced Firewall Software Read more.

Alternative apps to ZoneAlarm Pro:

25 votes
Agnitum Outpost Firewall Pro 9.3

Provides a superior arsenal of defense against PC infiltration by denying unauthorized access.
- Free to Try
- Windows
17 votes
Comodo Firewall Pro 3.12.111745.560

Free Comodo Firewall Pro - Complete security against Internet attacks.
- Freeware
- Windows
3.8/5

5 votes
Kerio Personal Firewall 4.3.744

Helps users control how their computers exchange data with other computers.
- Free to Try
- Windows
10 votes
Jetico Personal Firewall 2.1.0.14.2481

Protect computer from hackers' attacks.
- Freeware
- Windows