So what is the payment when we using your app ? We need to you DROPSTOKEN to pay the monthly fee or anual fee , right ?
The app itself will be FREE to listen to music. If you are an artist and want to promote your song on the system you will need DPD tokens. A % of the DPD tokens paid will be shared with the other users on the system who are "re dropping" the songs to their followers. Think of it like twitter for music, all running on DPD tokens.