It is very easy to earn robux with How to Get Robux app. Just enter the raffles and wait for the result. If you win any raffle, you will receive your R$. You don't have to pay money or you don't have to complete any task.
With the very simple and clean interface, you can use the app easily.
Also there is a guide about how can you get much more free robux with many ways.
Let's Start Win Some Real Rbx with the How to Get Robux app.