CHAMPCASH is one of the best option to earn money through your Smartphone but your earning depends on your referral. There are various ways to increase your referrals
 You can promote your referral link on social sites like Facebook, Twitter, Google + etc.
 If you are a bloggers with good traffic blog then you can use your referral links in your blog on about your content such as merit and demerit of your online business.
 You can share your referral link in various whatsapp groups