Yes - many of the free apps are dodgy and are "FREE" because the collect user data. Some, just for marketing... some, to hack you and get all your monies.
But THIS.... well, who knows exactly why. Maybe just to manipulate markets, or maybe something a bit more sinister.
Either way, I have already removed this app!! And you should too! Here is the evidence:
http://bitcoinerrorlog.com/blockfolio-crypto-portfolio-app-is-snooping-on-users
Thanks, deleting now. This was one of the few apps I've rated on Google Play. Looks it's time to adjust my rating.
Never eat a FREE cupcake.
Unless youre reallly hungry.
Im test driving Mycelium right now :p but thanks for the info sasha man!
https://www.blockfolio.com/june_30_privacy_statement.html