I made a fork on my github where you can not only do all of the things from the original app, but you can also start/stop the play timer, and view your own parental controls pin. You can download this release here
Thanks a lot to Shadow for help!
I've seen a few people ask how to remove parental controls when they don't have the pin, or on a firmware that requires the device ID to get the master key using the mkey.salthax website.
Thank you very much. I need parental controls for one of my children. I had already paired to the app before i created Emummc, and could not change the pin number. This worked perfectly.
Now if only there was a way I could whitelist apps too ....