A Custom ROM is a fully standalone version of an operating system, complete with kernel, applications, and services necessary for device operation. However, these versions are "customized" by developers rather than the original manufacturer.
What is a Custom ROM?
Since Android operates as open-source software, developers have the freedom to modify it extensively. They can take stock versions, remove unnecessary elements, optimize performance, and add new features based on their skills and vision.
Benefits of Custom ROMs
- Remove bloatware and unnecessary apps
- Better performance and battery life
- Latest Android features on older devices
- More customization options
- Privacy-focused options without Google services
- Extended device support beyond manufacturer end-of-life
Popular Custom ROMs
- LineageOS (successor to CyanogenMod)
- Pixel Experience
- OmniROM
- crDroid
- Evolution X
Requirements for Custom ROMs
- Unlocked bootloader
- Custom recovery (TWRP or CWM)
- Rooted device (sometimes)
