A Private Phone

Both Android and iPhones collect a lot of data from the user and send it to companies like Google who sell this data around the world.

One solution is to remove Google apps and others that compromise your phone.

The best way to achieve this is to get a new phone and install the GrapheneOS operating system which is very private and secure. With it you can use alternative apps that can help keep your information private. (Recommended by Edward Snowden via Naomi Brockwell.) Currently GrapheneOS only works on Google's Pixel phones. Watch Naomi Brockwell's video on a complete setup of a Pixel phone with Graphene.

In another video by Naomi Brockwell she discusses another OS for privacy and that is CalyxOS which runs on Pixel and some Motorola and Fairphone phones. You download the OS and install it. You can also buy a Pixel phone with CalyxOS pre-installed from the Calyx Institute.

Other steps can be taken to increase the privacy of your existing phone:

Faraday Cases

A way to secure your phone from tracking is with a Faraday cage. SLNT make them in multiple sizes, from small ones for phones, tablets and laptops up to entire backpacks.

Privacy Screen

Naomi Brockwell recommends a "privacy screen" on your phone, and on a tablet or laptop if it is likely to be used in a public location. These prevent viewing the display from other than a direct view angle. This is achieved by incorporating either a polarized filter or a micro-screen feature. They are overlays like screen protectors placed on the display. They are made of either plastic or glass and are readily available. For phones that have a fingerprint reader on the screen will have problems reading the fingerprint. For these it is best to get the plastic version and cut a small hole in it at the location of the fingerprint sensor.

Typical viewing angle reduction