alternative, open source version of Fairphone OS, built by Fairphone, that puts transparency and ownership in the spotlight.
Slim ROM Alternatives
Slim ROM is described as 'Is super-lightweight Android ROM for Samsung Galaxy phones, that's aimed at advanced users. Slim is designed to trim the fat down to the bare essentials and give you a fast and clean Android installation' and is a Android ROM in the os & utilities category. There are more than 25 alternatives to Slim ROM for a variety of platforms, including Android, Linux, Android Tablet, Linux Mobile and Android SDK apps. The best Slim ROM alternative is Android, which is both free and Open Source. Other great apps like Slim ROM are GrapheneOS, LineageOS, /e/ and postmarketOS.
Alternatives list
- 45 Fairphone Open alternatives
- 55 HarmonyOS alternatives
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.

- 80 Tizen OS alternatives
Open source Linux-based platform designed for smartphones, tablets, netbooks, automotive infotainment, and smart TVs, offering scalable compatibility, advanced multimedia, touch support, Application Compatibility Layer for Android apps, 3D UI, and multitasking.



Paranoid Android provides a unique experience and ultimate customization for your Android device.



- 41 Ubports alternatives
Ubuntu Touch is made and maintained by UBports. It is a free and open source mobile OS for you! Meanwhile we care about your privacy and freedom.
Cost / License
- Free
- Open Source
Platforms
- Linux
- 38 crDroid alternatives
CrDroid is a customized fork of Android based on LineageOS bringing a lot of custom features ported from others great roms out there.



- 44 OxygenOS alternatives
The new operating system from OnePlus, based on Android. OxygenOS is light and essential with subtle, useful features.



A security and privacy focused mobile operating system compatible with Android apps. Google-free secure Android for the latest hardware.


CopperheadOS is the most popular commercial alternative to Slim ROM.
- CopperheadOS is Paid and Proprietary
- CopperheadOS is Security-focused and Privacy focused
- 37 webOS Open Source Edition alternatives
webOS is a web-centric and usability-focused software platform for smart devices. The operating system has constantly evolved, passing through its journey from Palm to HP, and most recently to LG Electronics.

- 41 Havoc-OS alternatives
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.



- 37 Evolution X alternatives
Evolution X is a flashable Custom ROM to bring a true Pixel feel to your Android Device at first glance, with many additional configurations at your disposal. We aim to provide frequent builds with monthly security patches from the latest aosp sources.


- 36 Maru alternatives
Maru makes personal computing more context-aware by giving you the best interface for your environment. That means when you're on the go, Maru is your phone; when you're at your desk, Maru is your desktop.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Android
- Android Tablet


Maru is the most popular Windows & Mac alternative to Slim ROM.
- Maru is Free and Open Source


















