How to minimize data collection on a mobile smartphone using free and open-source software?
Mobile operating systems from major technology corporations collect a massive array of telemetry by default, including location history, voice queries, and diagnostic reports. Completely opting out of this within standard firmware is practically impossible, as basic services are deeply integrated into the system.
The solution for privacy-conscious users is to switch to alternative open-source mobile operating systems such as GrapheneOS or DivestOS. They are built with a focus on security, do not contain built-in trackers from major ecosystems, and allow strict control over the permissions of each individual application.
Practical steps to minimize data collection on your phone include:
This approach requires certain technical skills and a willingness to change smartphone usage habits, but it grants absolute control over what specific data leaves your device.