It didn't even cross my mind to enquire about the app which would be launched in December, I was excited about the attributes and my expectations be clouded my inquisitiveness. From my perspective, I believe the app which would be released in December, may not be the mainnet as there could be need to make some corrections.
In my opinion, Elynet has been working on the project for a while and have made all the necessary amendments as indicated on the article. The app would be launched in December and that would be the mainnet, though it's possible that they carry out periodic updates on the app to improve users experience and allow for more features.
Does that mean that they have done like their beta and alpha tests?, because they seem to come before the launch of the mainnet, if yes, that means they have gone quite far and i expect the mainnet to be properly tested by a selected few, so they can give feedback that will help fix any issues before releasing it to the public, givinf active community members the chance will be nice