Usage logger is a customisable app which allows researchers to record a participant's smartphone usage. It is capable of understanding: retrospectively seeing what a person has used the smartphone for (going 5 days into the past), understanding the context of what the smartphone is used for (what apps installed and what the other apps do) and also the app is capable of logging what a participant does in the future.

Researchers can design how the app functions (at - https://usage-logger-custom.netlify.com/) then get participants to install the app. Send them the QR code and the conduct the experiment. The participant will then get the password and the files back INDEPENDENTLY from each other. Then they can decrypt the files (at - https://usage-logger-decrypt.netlify.com/)