Kahooth is free for teachers

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This is kahoot

The Kahoot app can be used to create and share quizzes. For example, teachers can create tests in multiple-choice format or with text answers and surveys.

To use Kahoot, students and teachers download the same app (Android | iOS). At the beginning you will be asked in which role you would like to use the app. So far, Kahoot is only available in English. Your own entries (quiz questions) are of course possible in German.

The basic version offers quizzes with a small number of players and a few quiz types. The Pro version for EUR 2.83 per month or the Premium version for EUR 6.66 per month can be purchased in-app. Then more participants and quiz types can be added and the app can be customized.

This is how Kahoot works

Students can use the app without registering. Teachers need to log in with an email address and set a password.

Teachers share quizzes with the class using a code (PIN). In order to release quizzes via code within the app, you have to create a user account. No registration is required in the app to participate via code.

That's how we tested

For our test, we activated the pro version via in-app purchase.

Android

We carried out the test of the Android apps (version 4.1.0 from August 3rd, 2020) with a Google Pixel 2 with Android 10, on which personalized advertising is allowed. In the test of the teacher app, we created a profile and logged in with an email address and password, "School" was specified as the type of use. We then created a quiz and approved it using a code (PIN). In the test of the student app, we took part in the quiz using a code.

iOS

We carried out the test of the iOS apps (version 4.1.1 from 08/27/2020) with an iPhone 8 with iOS 13.5.1, on which personalized advertising is allowed. In the test of the teacher app, we created a profile and logged in with an email address and password, "School" was specified as the type of use. Then we created a quiz and released it with a code (PIN). In the test of the student app, we took part in the quiz via code.

Kahoot Pro sends this data

Android app for students and iOS app: Several third-party providers from the field of marketing and user analysis are integrated into the app, but they do not receive any unique identification numbers that can be used to identify users.

Android app for teachers: We classify this version of the app as problematic, as a total of four third-party providers receive information that can be used to create user profiles. In addition to several analysis services from Google, the service providers Hotjar and Iterable are integrated, which receive information from the app together with the personal advertising ID. The information can be assigned to existing profiles via the advertising ID.

Another problem in this context is that, according to the data protection declaration, the service can purchase additional information about users.

Security and data protection

All connections that Kahoot establishes to the Internet are transport-encrypted. This means that sent data can theoretically be viewed by the app provider, but not readily available to third parties.

The data protection declaration is only available in English. It applies to the website and apps and provides relatively detailed information about the data collected and the purposes for which it is used.

According to its own information, the provider can supplement information from users who create an account with information from third parties. This is excluded for users under the age of 16. Kahoot does marketing based on the approximate location (based on the IP address). The data protection declaration states that data can be passed on to third-party providers for analysis and marketing purposes. The data protection declaration does not name the third-party providers involved.

Conclusion

We rate the data transmission behavior of Kahoot Pro on iPhone and iPad as well as on Android when used as a student (without registration) as just acceptable. Three third-party providers from the field of analysis and marketing are involved, but they apparently do not receive any unique identification numbers from the app.

We advise against using the Android app as a teacher on the private device, as information is sent to service providers with whose help profiles can be created and supplemented.

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