Best Mobile OS Products in 2025

GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

Key GrapheneOS features:

Enhanced Privacy Security Focus Regular Updates Open Source

Open Source

Operating system for smartphones and tablet computers, based on the Android.

Key LineageOS features:

Open Source Privacy Customization Regular Updates

Privacy-focused operating system for smartphones based on Android and microG.

Key CalyxOS features:

Privacy-Focused Security Enhancements De-Googled Experience Compatibility with Android Apps

A real Linux distribution on the phone.

Key postmarketOS features:

Long-Term Support Privacy and Security Open Source Wide Hardware Support

A free-as-in-freedom re-implementation of Google’s proprietary Android user space apps and...

Key microG features:

Open Source Privacy Lower Resource Usage Customization

Open Source

Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.

Key Android features:

Customization Diverse Hardware Options Google Services Integration Open Source

Open Source

Read more about Ubuntu Touch. Our free and open source mobile OS is made and maintained by UBports! We care about your freedom and privacy.

Key Ubuntu Touch features:

Open Source Privacy-focused No Bloatware Convergence

F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.

Key F-Droid features:

Open Source Philosophy No Tracking or Ads Security and Privacy Offline Usage

Blackberry Blend is software that seamlessly connects information between a Blackberry mobile device and a desktop PC or a tablet device.

Key BlackBerry Blend features:

Unified Access Security Productivity Compatibility

Plasma Mobile turns your phone into a fully open hacking device, just like a PC.

Key Plasma Mobile features:

Open Source Customizability User Privacy Integration with Linux Ecosystem

Mobian, Debian for mobile devices.

Key Mobian features:

Open Source Debian-based Mobile Focus Community Driven

/e/ is a fork of LineageOS that aims to be completely free of everything Google.

Key e.foundation /e/ features:

Privacy-focused Open Source User-Friendly Interface Regular Updates

Secure Android built for encrypted and secure phones by a privacy focused company. Available as security-centric and privacy focused Google-free Android for the latest devices. Fully integrated with the latest IDS and MDM enterprise technologies. .

Key CopperheadOS features:

Secure Android Privacy Focused Company Management (Corporates / Travel Agents) Integrations

Open Source paid Free Trial $99.0 / One-off (Per License)