So basically OneAD is a which is used to earn money by referring to your friend .it’s all concept is based on referring to your friend. it’s all consept is based on referring. but it is not like that your friend just need to download but he also need to be active on it , means he need to allow OneAD to run ads on the lockscreen. And the honesty speaking it is not the best way to earn money es it takes to much time to earn. As it is difficult to build such a chain of friends, if to do so you will need to beg people to download it.