Be careful guys.  I checked out digitalcoins website http://www.drugdiscoveryathome.com/ and the address listed on it is:

20-22,Wenlock Road London N1 7GU

When you google this address, it comes up with a bunch of different businesses and also the following article:

https://www.gov.uk/government/news/high-court-orders-six-more-bogus-multi-million-pound-companies-into-liquidation

Unless the dev can explain himself, I'd avoid this project like the plague.