DockerFile : Difference between ADD and COPY

As per this the following reference
I see no difference between ADD and COPY.
Please help me with a simple example explaining the difference.

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  • One Solution collect form web for “DockerFile : Difference between ADD and COPY”

    Found the answer here: Docker COPY vs ADD

    • ADD allows <src> to be an URL
    • If the <src> parameter of ADD is an
      archive in a recognized compression format, it will be unpacked
    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.