Blokada is a suite of privacy apps for Android and iOS. The apps block advertisements and trackers, and the range includes a parental-control app and Blokada Plus, a VPN subscription that encrypts all network traffic with the WireGuard protocol. Blocking works through encrypted DNS: Blokada Cloud can be used on any platform that supports DNS over TLS or HTTPS and, according to the vendor, also on Windows, macOS, Linux and in browsers. The apps run on the device; the DNS and VPN services run on vendor-operated servers.
Blocka AB, a Swedish company established in the EU, develops Blokada. The vendor says its servers are located in many places around the world but does not name the countries, so a European organisation should confirm where DNS and VPN traffic is processed before using the service. The developer describes the apps as open source, but this is not stated for Blokada Cloud. The vendor says it does not track or share network activity, a claim to check against the processing terms.