CIRA Canadian Shield protects you from online threats such as malicious domains, phishing websites and helps to keep your personal data private. It also provides DNS privacy by keeping your DNS requests in Canada. This app works by changing your phone's DNS settings to run your requests through CIRA's Canadian server network.

Powerful threat blocking

We block over 100,000 new threats every day through our partnership with Akamai and their global threat feed.

Privacy online

CIRA Canadian Shield is located exclusively in Canada, which means faster response times and your data stays local whenever possible.

By Canadians for Canadians

We keep your DNS traffic private and inside Canada. We will never use or sell your personal data, unlike Internet Service Providers (ISPs) and large corporations.

Important notes and FAQs
• Please note that if you check the data or battery usage on your phone, it may appear as though this app is using a lot of data and battery. However, this app isn’t actually using all that data/battery. Reporting for the data/battery usage has been shifted from your other apps to this one, because your data now passes through this app. Actual battery usage will be minimal – on average less than 0.1%.
• The app automatically runs in the background and you will see it is running in the notifications center. The VPN Icon (VPN active) will be visible on the Status Bar while any of features are running. You will also see occasional notifications when status changes in the app and as you connect and disconnect from Wi-Fi.
• Reporting an issue with the application is performed by tapping the Menu (upper right corner of the app) and then tapping ‘Support.’ When reporting a problem, please be as specific as you can in the message.
• Please check the FAQs before submitting a Support request. FAQs can be found here:

About CIRA

CIRA is the Canadian non-profit that manages the .CA domain on behalf of all Canadians. We are building programs, products and services that leverage all the internet has to offer to help build a trusted online Canada.

What’s New

Version 4.0.12

This release fixes an issue where some users were unable to access the premium features of the app.

Ratings and Reviews

4.2 out of 5
28 Ratings

28 Ratings

lancenichols ,

A great idea, but power hungry

It kept asking me to bond to my WiFi network, which isn’t needed, as my external DNS queries their servers. It seemed to kick me off my WiFi frequently when I was sitting on my patio - something that do don’t happen as often w/out the app.

The final straw was the amount of battery power it consumes! 16% of my daily battery use was this app.

pineapplekiwimango ,

Major battery drain with older phone

I know the FAQ insists that this app doesn’t use much battery and it only looks like that because other app use is routed through it. But after using it for about a week I don’t buy that at all.

In 2.5 hours this morning my phone has gone from fully charged to 23% battery with barely any use. It’s also getting really hot when I use it.

This app has noble aims and I want to use it, but it’s just not feasible with the current battery use.

I’m using a 2016 iPhone SE, so maybe it’s possible that this app would work better on a newer phone.

im_dino ,

Works well but...

Works well but would like to see feature where you can have a list of trusted wifi networks that it would bypass the wifi encryption or the VPN all together.


Canadian Internet Registration Authority
95.8 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.


English, French

Age Rating
In-App Purchases
  1. CS Premium services $1.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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