Sifo Internet is a free Android app developed by Kantar Sifo for panel participants. The app requires login credentials and is exclusively designed for Sifo Internet panel participants. Sifo Internet aims to understand how media apps are used in Sweden and rewards users for their participation. The app also provides an easy way for panel members to update their information and keep their profiles up to date.

The app's interface is user-friendly and straightforward. Upon logging in, users can access their profile information and update their demographics. Panel participants can also keep track of their rewards and points earned through the app. The app's primary purpose is to collect data and feedback from panel participants, and it does so efficiently.

Overall, Sifo Internet is a useful tool for panel participants who want to keep their profiles up to date and track their rewards. The app's interface is easy to navigate, and the data collection process is efficient. However, it is important to note that this app is only intended for Sifo Internet panel participants and requires login credentials to access its features.