iPhone Screenshots


Guardian Firewall is sophisticated software with a simple design. Guardian can block digital trackers from secretly collecting your information, we show attempts by data companies to track you, and prevents eavesdropping of your sensitive data such as banking passwords using strong encryption.

No sign up or registration needed - Just press protect and you’re done!

Our VPN feature is free, allowing you to encrypt your data while on public networks, even if you do not subscribe to the Firewall.

Free - Low Speed VPN:
* VPN - Encrypt your network data to better protect you, especially while on public networks
* Use VPN + Firewall to sample your traffic (VPN does NOT not stay on)
* Tracker Alerts - See who is accessing your data without your permission
* In-App feedback and tech support emails to for easier access
* In-App settings and configuration

Our Firewall feature costs $9.99/month or $99.99/year (Family plans and other discounts coming soon!). Additionally, you will have faster and more reliable VPN speeds!

Subscription - High Speed VPN + Firewall:
Receive all the same benefits from free version PLUS
* High-Speed VPN - Encrypt your network data to better protect you - With much faster download and upload speeds
* Tracker Blocking and Alerts - See who attempted to access your data and was blocked by the firewall
* Always stay connected to VPN

Enhance your privacy with the press of a button. Guardian prevents digital trackers from secretly collecting your information, shows attempts by data companies to track you, and prevents eavesdropping of your sensitive data such as banking passwords using strong encryption.

Confidently use your mobile phone as you always do, with the knowledge that Guardian will work to automatically protect you from those who wish to gain access to your information.

Take back control of your data from large entities who believe they are entitled to collect your information with impunity.

The Guardian Firewall team holds a strong belief that people should be able to use apps on their digital device without fear that it may be sold to unknown third parties.

• Protect your passwords and all other sensitive data with a layer of strong encryption provided by our free VPN feature
• See what companies are attempting to track your location information, phone usage habits, and more
• Use apps more confidently as you are protected from various types of junk, transparently giving you a safer experience
• Our cutting-edge threat intelligence data is updated daily to ensure we can effectively protect you from threats
• Get a “bank statement” style list in the Alerts tab of who attempts to collect your information

Privacy Policy & Terms of Service: https://guardianapp.com/privacy.html

Please contact hello@guardianapp.com with any questions, concerns, or reports of potential security concerns.

What’s New

Version 1.0.20

FIXED: Handling of certain scenarios which caused an infinite spinner when pressing "Restore Existing Subscription" in the Settings tab.

Ratings and Reviews

4.2 out of 5
172 Ratings

172 Ratings

jansoucek ,

Great app for privacy

This service that this app provides is very needed these days. Developers are including 3rd party frameworks left and right and for regular people there was no way to stop them, until now. I, however, am not a regular user - I’ve been running my own VPN with Pi-hole DNS blocking for past year and I was looking to outsource the job to Guardian. But right now, I cannot. Simply put it is not aggressive enough in blocking trackers. I know how much tracking traffic there is on my phone. I check my Pihole logs and statistics every day. There are dozens if not hundreds different trackers. Unfortunately Guardian shows only “App Measurement” in my log and not event that many - around 50 by day. I absolutely understand that when you are dealing with lay people, the one thing you cannot afford as a starting business is to break people’s apps when they install your app. I get it that you have to be conservative in order to not alienate your users. But there should be a switch. There should be a “this might break things” switch that would start blocking way more trackers, just like my pihole does. Until there is more hardcode mode, Guardian is just too weak blocker for me to use and not worry about my data being stolen.

Developer Response ,

Thanks for this honest constructive criticism. We indeed operate conservatively to be mindful of app stability. Our plan is to ramp up the aggression of blocking when we have our Exceptions List feature fully working, so that people can consciously choose to allow some things in order to make an app work (Knowingly accepting the trade-off, instead of being tracked in secret).

DemonDestructor ,

Killer App– Easy to Use!

This app is unreal!

In a world where data is being collected and tracked off your personal devices, this app is designed to put your mind at ease. I’ve been using the beta and it’s been amazing! In a short amount of time, it has BLOCKED literally 1000s of trackers.
That includes data trackers known to collect analytics and device info., trackers used for receipt email messages, GPS location info trackers, trackers that collect personal data for ads, page hijackers, and more!!

The great thing about this app is that it’s super easy to use, and will benefit everybody, whether you’re a security aficionado or just a regular and light iPhone/mobile user.

It’s scary to think about all the apps and websites that use trackers to pull information from your device. This app makes it really easy to see all that is being blocked in the form of a “bank statement.”

Extra perk that it also has a VPN built into it :)

10/10 would recommend to everyone!!!

Gabe12243 ,

Easy to use and great concept it but caused problems

I installed this on my wife’s and my phone. I had preordered it a while back. It was easy and worked great for a day or two. It provided awesome info and a list of blocked location and blocked data. There were hundreds of items that were blocked in a couple of says. Then, suddenly, neither of us could use our phones for most common uses...my weather app wouldn’t update, we could text but not receive text photos, Snapchat would show notifications but not download the actual message, Facebook and Instagram would not update. I disabled the app and both phones worked fine. I’ve tried it several times in the past couple of days...same result every time, everything works for a while then it blocks everything and I have to disable it again. I’m using it on my iPad and it seems to be fine for now. There aren’t any settings to be tinkered with so I don’t think it’s anything I’m doing wrong.

Developer Response ,

You most certainly did not make any error on your end, don’t worry! The errors you describe sound like known issues with our earlier infrastructure, which have now been resolved.

We invite you to give the app another try. You will notice a considerable difference.


Annual subscription to Guardian Firewall
3 Month subscription to Guardian Firewall
Monthly subscription to Guardian Firewall


Sudo Security Group, Inc.
3.9 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German

Age Rating
Rated 4+
© 2019 Sudo Security Group, Inc
In-App Purchases
  1. Monthly $9.99
  2. Yearly $99.99
  3. Quarterly $26.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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