ViperOS is described as 'It's Stable and Battery Friendly Custom ROM. Many features, High Performance and Reability. Feel the Venom in your vein' and is an app. There are more than 10 alternatives to ViperOS for a variety of platforms, including Android, Android Tablet, HUAWEI AppGallery, Android Auto and Android SDK apps. The best ViperOS alternative is Android, which is both free and Open Source. Other great apps like ViperOS are LineageOS, /e/, CalyxOS and iodéOS.
Open-source mobile OS developed by Google, based on the Linux kernel. It supports app development in Java and Kotlin. Compatible with various devices, offering seamless integration with Google services, customizable interface, and extensive app ecosystem for smartphones and tablets.
Free and open-source Android-based operating system for smartphones and tablets, designed to enable deep customization, enhanced privacy controls, regular security updates, and broad device compatibility without default proprietary Google services.
/e/ is a fork of LineageOS that aims to be completely free of everything Google. Not only that, but there are a number of goals the developer has in mind for /e/ that more people feel are vital to a mobile operating system.
Everyone needs a phone. Not everyone wants governments and corporations tracking their every move and spying on their communications. CalyxOS lets you have your cake and eat it too, with "Privacy by Design".
Android-based OS emphasizing privacy, open source transparency, tracker and ad blocking, independent app installation, digital sovereignty, community development, routine updates, environmental sustainability, and a familiar interface for alternative Android devices.
Distributed microkernel OS with AI and edge computing capabilities for smartphones, wearables, TVs, tablets, and IoT; features multi-layered architecture, custom device kernels, Linux ABI compatibility, seamless interaction, and resource sharing across devices.
Havoc-OS is an after-market firmware based on Android Open Source Project, inspired by Google Pixel with a refined Material Design UI. We offer a smooth and stable experience for your device with a selected set of amazing features that provide an exceptional user experience.
Oniro is an Eclipse Foundation project focused on the development of a distributed open source operating system for consumer devices, regardless of the brand, model, make.
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