Is this button animation copyright free?
Yes. You can use this subscribe button animation pack without worrying about any sort of copyright issues. all of this are completely free to you.
How To Unzip The Pack File?
First, download the zip file that i have provide you. Then open folder where the file gets downloaded now tap and hold you will get (extract here) option. If your file manager does not have zip file extracting features then you can use any zip file extractor apps.