Sailfish OS
At the heart of Jolla is Sailfish OS, the independent mobile operating system offering an alternative to the existing dominant systems. Sailfish OS is the perfect solution for country ecosystem and corporate mobile projects, or for consumer devices.
Some of the top features or benefits of Sailfish OS are: Privacy, Unique UI/UX, Linux-based, Compatibility with Android Apps, and Community Support. You can visit the info page to learn more.
Best Sailfish OS Alternatives & Competitors in 2025
The best Sailfish OS alternatives based on verified products, community votes, reviews and other factors.
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Open-Source Alternatives.
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/android-alternativesAndroid 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
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/ubuntu-touch-alternativesRead 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
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/lineageos-alternativesOperating system for smartphones and tablet computers, based on the Android.
Key LineageOS features:
Open Source Privacy Customization Regular Updates
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/mobian-alternativesMobian, Debian for mobile devices.
Key Mobian features:
Open Source Debian-based Mobile Focus Community Driven
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/grapheneos-alternativesGrapheneOS 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
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/ubuntu-alternativesUbuntu is a Debian Linux-based open source operating system for desktop computers.
Key Ubuntu features:
Open Source Security User-Friendly Community Support
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/calyxos-alternatives
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
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/e-foundation-e-alternatives/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
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/pureos-alternativesA user friendly, secure and freedom respecting OS for your daily usage.
Key PureOS features:
Privacy-focused Open Source Linux-based User-friendly interface
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/postmarketos-alternativesA real Linux distribution on the phone.
Key postmarketOS features:
Long-Term Support Privacy and Security Open Source Wide Hardware Support
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/fedora-alternativesFedora creates an innovative, free, and open source platform for hardware, clouds, and containers that enables software developers and community members to build tailored solutions for their users.
Key Fedora features:
Cutting-edge Software Strong Security Developer Friendly Red Hat Sponsorship
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/firefox-os-alternativesFirefox OS is an open-source smartphone OS that uses the Open Web as a platform for mobile devices.
Key Firefox OS features:
Open Source Web-based Technologies Lightweight Focus on Privacy
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/luneos-alternativesLuneOS is a free and open source mobile operating system that respects users’ privacy.
Key LuneOS features:
Open Source Legacy Device Support Web-based Systems Efficient Multitasking