CyanogenMod is most popular custom ROM available for Android devices. Most people install CyanogenMod when companies no longer support their smartphones. Like even Samsung Galaxy S users are enjoying Android 4.4 KitKat through CyanogenMod although Samsung has stopped giving further updates after Android 2.3 Gingerbread.
Installing custom ROMs is difficult for some users so CyanogenMod introduced CyanogenMod installer a few months ago. CyanogenMod Installer currently supports only few devices including Samsung Galaxy S series phones, Galaxy Note series , Google Nexus series and hTC ONE. Installer makes it very easy to install CyanogenMod. You just have to attach your phone to your computer through USB cable, follow some steps and all done! However till now, CyanogenMod installer was available only for Microsoft Windows but today CyanogenMod Installer is out there for Mac OS X as well. Installer works on Mac the same way it does on Windows. So if you are a Android user and you have a Mac too you can try installing your custom ROM now.