Blok: Simple Fast Firewall AlternativesFirewalls and other similar apps like Blok: Simple Fast Firewall

Apps similar to Blok: Simple Fast Firewall include NetGuard, which is open source with a free version. Other options are Comodo Internet Security, AFWall+, CacheGuard Gateway and Quantum Flare. You can choose from more than 10 Firewalls like Blok: Simple Fast Firewall for Android, Windows and self-hosting.

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Blok: Simple Fast Firewall alternatives page was last updated Jun 5, 2025

NetGuard
65 likes
Offers detailed per-app internet control for Android with no root required, blocks Wi-Fi and mobile connections, supports IPv4/IPv6, privacy-focused, usage logging, system app blocking, tethering support, various notification settings, and material themes.
45 NetGuard alternatives
Cost / License
Freemium
Open Source (GPL-3.0)
Application typeApplication types
Firewall
Privacy Tool
Origin
Netherlands
EU
Since
Since 2018
Platforms
Android
Android Tablet
F-Droid
OpenAPK
Netherlands
EU
Good alternative?Is NetGuard a good alternative to Blok: Simple Fast Firewall?
Comodo Internet Security
237 likes
Comodo Internet Security is a free, very voluminous and multi-layered security application that keeps hackers out and personal information in.
83 Comodo Internet Security alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
Anti-Virus
Anti-Malware
Origin
United States
Since
Since 2009
Platforms
Windows
United States
+1
Good alternative?Is this a good alternative to Blok: Simple Fast Firewall?
AFWall+
43 likes
Firewall (iptables frontend), based on DroidWall which is no longer being developed. A paid "donate"-version with more features it advertised within the app.
Cost / License
Freemium
Open Source (GPL-3.0)
Application type
Firewall
Origin
India
Since
Since 2013
Platforms
Android
OpenAPK
F-Droid
India
Good alternative?Is AFWall+ a good alternative to Blok: Simple Fast Firewall?
Ad
ESET Mobile Security
This app protects mobile devices from viruses, ransomware, and malware. It uses NOD32 antivirus technology, blocking harmful apps and websites, safeguarding online payments, providing anti-theft tools, and eliminating unwanted ad...

https://www.eset.com
Learn More
CacheGuard Gateway
7 likes
CacheGuard Gateway is a free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost.
Cost / License
Free
Open Source
Application type
Firewall
Origin
France
EU
Since
Since 2016
Platforms
VirtualBox
Self-Hosted
VMware vSphere Hypervisor
Microsoft Hyper-V Server
Proxmox Virtual Environment
France
EU
Good alternative?Is CacheGuard Gateway a good alternative to Blok: Simple Fast Firewall?
Quantum Flare
1 like

Anti-phishing & anti-ransomware: Protects you from apps that steal login credentials or credit card numbers. Complete ransomware threat attack protection.

Cost / License
Freemium
Proprietary
Since
Since 2019
Platforms
Android
Good alternative?Is Quantum Flare a good alternative to Blok: Simple Fast Firewall?
ESET Mobile Security
1 like
This app protects mobile devices from viruses, ransomware, and malware. It uses NOD32 antivirus technology, blocking harmful apps and websites, safeguarding online payments, providing anti-theft tools, and eliminating unwanted ads, all without draining battery.
Cost / License
Freemium
Proprietary
Application type
Anti-Virus
Origin
Slovakia
EU
Since
Since 2010
Platforms
Android
Android Tablet
Slovakia
EU
Good alternative?Is ESET Mobile Security a good alternative to Blok: Simple Fast Firewall?
RedGuard: Free Adblock & Firewall
2 likes
Free adblocker, anonymity, traffic and battery saver, firewall, and Internet speed increase.
Cost / License
Free
Proprietary
Application typeApplication types
Ad Blocker
Firewall
Since
Since 2023
Platforms
Android
+1
Good alternative?Is this a good alternative to Blok: Simple Fast Firewall?
NoRoot Firewall
3 likes
Firewall WITHOUT ROOT. Host name/domain name filtering, simple interface, fine-grained access control and no suspicious permissions on the firewall app itself.
18 NoRoot Firewall alternatives
Cost / License
Free
Proprietary
Application type
Firewall
Since
Since 2015
Platforms
Android
Good alternative?Is NoRoot Firewall a good alternative to Blok: Simple Fast Firewall?
orWall
5 likes
orWall will force selected applications through Orbot while preventing unchecked applications to have network access.In short, orWall will add special iptables rules in order to redirect traffic for applications through .
Cost / License
Free
Open Source
Application type
Firewall
Since
Since 2014
Platforms
Android
Android Tablet
Tor
Orbot
Good alternative?Is orWall a good alternative to Blok: Simple Fast Firewall?
Firewall AI
Like
The advanced AI-powered firewall: Take control of all connections and defend against hackers, spyware, and trackers.
Cost / License
Freemium
Proprietary
Application type
Firewall
Origin
Germany
EU
Since
Since 2025
Platforms
Android
Germany
EU
Good alternative?Is Firewall AI a good alternative to Blok: Simple Fast Firewall?