DNS Firewall by KeepSolid 4+

Filter malicious web traffic

KeepSolid Inc.

    • 4.5 • 68 Ratings
    • Free
    • Offers In-App Purchases


Stay safe online with DNS Firewall! This network security solution blocks known malicious websites, helps you avoid phishing attacks and undesired content so that you can enjoy the best browsing experience.

Designed with safety and quality in mind, DNS Firewall offers you the highest security standards and cutting-edge technologies. Check it out and see for yourself!


- Block malicious websites
- Protect your Mac when surfing the web
- Filter traffic and prevent phishing attacks
- Keep your data safe from third parties
- Create your own blocklists
- Avoid undesired content like gambling sites, etc.

Note: KeepSolid DNS Firewall is a part of the MonoDefense security bundle. The bundle offers versatile protection of your online activities, passwords, and other sensitive data. Choosing MonoDefense, you get DNS Firewall, VPN Unlimited®, and the password manager Passwarden® all in one package.


◆ Advanced protection online

Prevention is better than cure. It’s better to block malware domains before they cause any damage. This is exactly how DNS Firewall works. It filters your traffic in real-time, intercepts DNS resolution for malicious websites, and blocks them.

In the same way, DNS Firewall helps to protect your Mac from phishing attacks, websites with intrusive pop-up ads, and inappropriate content like gambling, fake news, games, suspicious domains, etc.

◆ Regular database updates

Though the threat landscape is rapidly evolving, KeepSolid DNS Firewall keeps up with the pace! We’ve ensured regular updates of our databases to guarantee the ultimate protection of your online activities.

◆ Multiplatform support

DNS Firewall offers cross-platform support and can be used on up to 5 devices with a single subscription. So, you can surf the web worry-free on your Mac, iPhone, or any other device you have.

◆ Intuitive interface

Getting started with KeepSolid DNS Firewall is as easy as 1-2-3! The app features an intuitive and easy-to-use interface. Just a quick setup, a few clicks, and malicious websites stand no chance. Absolutely no technical knowledge is required.

◆ 24/7 customer support

Our customer support team is available 24 hours a day, 7 days a week. We are glad to help you whenever you need any assistance or have any questions. So feel free to contact us via support@keepsolid.com at any time!

After your free 7-day trial, you can choose any of our subscription options:
▶ 1 Month
▶ 1 Year
▶ Lifetime

Legal information:

What’s New

Version 1.0.6

- Improved the app’s performance and stability
Have any questions? Feel free to contact our customer support via support@keepsolid.com.

Ratings and Reviews

4.5 out of 5
68 Ratings

68 Ratings

taisZoomTh3idqtb ,

Love it

Excellent DNS Firewall. It works flawlessly. It is a great tool to block ads that are disruptive from specific apps. I love that by default, it blocks access from all applications, and you can enable internet access for one app at a go (DNS DNS Firewall by KeepSolid notifies that you are notified when an application is trying to access). It isn't always clear what apps cause advertisements to appear and this approach works better than other DNS Firewalls that, by default, allow access to all applications. I used to use Mobiwol which often crashed, and I required a manual restart of the DNS Firewall numerous times throughout every day. When it was off the internet was not restricted which meant that ads would be able to be displayed.

Developer Response ,

Thanks for the 5-star review, we appreciate it. Our team will keep working hard to provide the best service for each and every customer, thanks for choosing us!

Amarria Latteyktczoq ,

nice app

This is a perfect solution for what I need. I want to manage background apps while roaming and allow some apps to be allowed while others are not. This works. It could be useful to have an option for roaming columns (a mobile column that works for devices that are roaming) not only WiFi or cellular. I can switch it off and on when needed. It's a shame that those who leave negative reviews don't know that the restrictions on VPNs are within iOS and not in the application.

NguyetBuuknta ,

Best App So Far...

It will shock you as you observe the type of data harvesting taking place using apps that don't require internet access. Perfect application-level DNS Firewall. Just what I need and stops my bandwidth from being depleted by applications that I haven't even opened or even use. It turns out that my Chinese-manufactured phone is making calls for the manufacturer...this is insane! It's easy to turn access off and on per application so that even apps that you use are able to be disabled when not making use of them.

Developer Response ,

We appreciate your positive review, thank you for taking the time to share your opinion. Have a great time using our service and don't forget to recommend us to your friends ;)

App Privacy

The developer, KeepSolid Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

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Photo Transfer WiFi
Private Browser - Surf Safe
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KeepSolid SmartDNS

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