Zattoo is a TV platform which states that it can be used for IP-based transmission of television channels and video on demand content to different devices.

[3] On 20 April 2007, Zattoo launched in Denmark with ten channels and started piloting in the United Kingdom.

[7] The UEFA Euro 2016 provided Zattoo with a new user record: a total of 1.8 million viewers watched the games on the OTT platform, more than 800,000 of them in Germany.

This means that they can watch German TV programmes while staying temporarily abroad in another EU country.

[19] At one point, the business claimed to have 20 million registered users, which would make it one of the largest TV-streaming providers in Europe, although this data has not been independently verified.

Applications exist for all major mobile platforms and for set-top boxes, video game consoles and connected TVs.

On 19 December 2009, the Audiovisual Media Services Directive[23] regarding watching TV online from other EU countries came into force.

This does not affect Zattoo or other P2PTV providers at all, since the directive only changes the jurisdiction where a country does not allow the reception of a foreign TV channel due to different laws.

In June 2017, Chip.de awarded Zattoo Premium with the highest score and the best price-performance ratio in a comparison of five paid streaming services.

Zattoo won the award in the category "Pioneering Development of Large Scale, Cloud Served, Broadcast Quality, Linear Channel Transmission to Consumers", honoring its pioneering development in the field of mass-market, cloud-based TV transmission technologies.