Just tried it today, there is a option to use 2x boost, i got over 1000 steps but when it came time to pay the app said its only 300 steps, and also the good products product in shops are already sold out and in the bidding section people are bidding over 30,000 sweatcoin when you only get 1 coin per 1000 steps so either these 'people' are world class marathon athletes that do this for fun or are bots, app is very scamy, disappointed😞