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Alternatives to iOS
Apple's mobile operating system for iPhone.
Open Source Alternatives to iOS
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CalyxOS
Privacy-focused Android OS with verified boot and microG support.
Direct replacementOSAndroidOpen SourceNo Tracking
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LineageOS
Free and open-source Android distribution with broad device support.
Direct replacementOSAndroidOpen SourceNo Tracking
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GrapheneOS
Privacy and security focused mobile OS based on Android with hardened sandboxing.
Direct replacementOSAndroidOpen SourceNo Tracking