You can now earn ₦400 when you invite new users on Opay app and your invited users also get ₦250 after completing the required tasks. Below is all you need to start making money on the app:

Sign up here:
https://opay.ng/s/6v0

Drop your phone number on the page and download the app on Google Play then complete the below steps:
1. Sign up: +₦50
2. Upgrade account +₦100
3. Add money to wallet +₦100
4. Send money to a friend +₦150

You can easily withdraw money to bank

I haven't heard of them before. I'm using whogohost