Replicant is a free and open source operating system based on the android. Replicant was developed by Paul Kocialkowski and released in 2010. Replicant is sponsored and supported by the Free Software Foundation. Replicant comes with some different features than the android. Replicant is licensed under the Apache License 2.0. Replicant has all apps preinstalled that are the basic need of smartphones.
Samsung has launched many devices with Replicant OS and also loved by the users. Replicant has a bright future in the industry. Replicant is updating day by day with the new features. There are many other Android OS are also available but If you are finding an alternative of CyanogenMod then Replicant OS will be a good choice.