The Geolytix aggregated in-app location dataset has been collected and supplied by Geolytix Ltd. in collaboration with the CDRC from August 2021 to July 2022. The dataset contains hourly aggregated activity counts derived from in-app mobile-phone GPS locations across Great Britain. Mobile phone applications seek user’s consent for recording and storing the mobile device’s GPS location when the app is in use. Footfall and activity proxy counts are derived from these locations as the sum of distinct devices per grid cell per day.

Footfall activity counts data can provide research value for various actors and be used to measure activity levels, particularly in heavily used urban spaces. They may be linked to workplace zones or geodemographic classifications, for example, to better understand the functioning of local areas. Activity counts not reliant on fixed footfall sensors are valuable in ascertaining activity levels in retail and other locations.