Google Task Mate is available in play store

Hi friends today morning I was searching for google task mate in play store and it was available. I quickly clued on download button and installed it on my phone or android device. Google Task Mate gives you task and after completing the task you get rewarded. Currently Google Task Mate is in beta version and is only available on referral invitations.

What is referral invitation?
A person who has access to Google Task Mate can invite you to join the application. I am not sure for how many people can they send. There might be some restrictions need to check this part
. Once invitation is received it will consist of code. Which can be entered in your application. 

Let me know if you receive invitations and you can refer me also as I too am looking for access of Google Task Mate.