"When you use the app, we collect your Location Information through your device IP address, WiFi, Bluetooth, and, when you have enabled geolocation tracking, GPS coordinates (e.g. latitude/longitude) of your mobile device in order to detect and prevent fraud. If you have given the app permission to access your location, we will collect your device's location as permitted by the settings you choose, and store your location history."
Atlas collects location data through multiple methods including GPS, WiFi, Bluetooth, and IP address, and stores a history of your locations over time. While framed as fraud prevention, this is extensive multi-signal location tracking with persistent storage.