Lykke is to me one of the best investments these days. Their decentralised-centralised exchange system has enormous utility in the foreign exchange markets. Way more secure, time and cost effective for people and companies dealing with massive international transactions.

I can't believe that on google play, their app is only listed with 1000+ downloads.

There is a LOT of upside potential here, although the $0.05 USD buys might be history.