We are looking for students to participate in a study on mood states

Complete the study and receive a £10 Amazon Gift Voucher!


  • Have an android smartphone no older than 3 years (no iPhones)
  • Be a student


Study Structure and Data Collection

You will download the MoodTrack app and use it for two 1-week periods (1 week now and 1 week at the end of this semester).

The app will ask you to complete a daily sleep diary and some other very short questionnaires relating to depression and phone use (none of these take longer than a minute each).

What we collect:

The application collects the following data: WIFI networks, environmental sensors (light, magnetic field, accelerometer and microphone) data, app usage (the number of accesses per feature and duration). The data collected and provided will be automatically uploaded to a server. We do not provide any participant number but we collect your IMEI (International Mobile station Equipment Identity) number to link the sensor data collected with the app usage. Optionally, participants will be asked to provide an email address to receive a £10 gift voucher, if they complete the study.

What we do not collect:

We do not ask any additional personal information such as name and even though we collect the IMEI number, we will not use it to track back any person. The application does not collect any other personal information such as photos, messages, contacts, contents of app usage, web browser data etc.

Click here to access instructions on how to participate.


Contact Information
For any inquiries or additional help please email This email address is being protected from spambots. You need JavaScript enabled to view it.. We are also more than happy to assit you if you are not sure how to install the application. Please note that only recent Android Operating System smartphones (e.g., Samsung, Sony Xperia, LG, Huawei) not older than three years are compatible for this study.


If you have a complaint please email This email address is being protected from spambots. You need JavaScript enabled to view it.