I do a lot of walking, so I downloaded this app call Step Younger ( stepyoungerpro@***.com) when you complete a task you get a puzzle piece each time you complete a task like walking, blood pressure etc. so I need 16 puzzles pieces to win a $100.00 Amazon gift card so when I got down to only needing one more puzzle piece it started me back at the beginning where I needed all 16 pieces I have emailed them six times to asked them why they still haven't replied to any of my emails they did prove that they are a scam like all the other games I have played and never got a pay off, so I did what I did with all the rest I uninstalled them. I felt if they weren't a scam they would have address my concerns, but they never did.