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CatalogFirewall software

Firewall software

7 apps ranked by verified data. See how ranking works

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01

The open source router/firewall OS.

Apache-2.0 Web
Alt Score

Alt Score · 75

How this alternative ranks. How it works →

Verified coverage 90%72
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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02

No-root Android firewall.

GPL-3.0-only Android
Alt Score

Alt Score · 70

How this alternative ranks. How it works →

Verified coverage 90%67
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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03

Free open source Mac firewall.

GNU General Public License v3.0 macOS
Alt Score

Alt Score · 65

How this alternative ranks. How it works →

Verified coverage 90%61
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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04

The Mac outbound-connection guardian.

Proprietary macOS
Alt Score

Alt Score · 60

How this alternative ranks. How it works →

Verified coverage 90%56
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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05

Open source app firewall with DNS filtering.

GNU General Public License v3.0 WindowsLinux
Alt Score

Alt Score · 55

How this alternative ranks. How it works →

Verified coverage 90%50
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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06

Visual network monitoring firewall.

Proprietary WindowsAndroid
Alt Score

Alt Score · 55

How this alternative ranks. How it works →

Verified coverage 90%50
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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07

The friendlier pfSense fork.

BSD-2-Clause Web
Alt Score

Alt Score · 55

How this alternative ranks. How it works →

Verified coverage 90%50
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

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