Used CrowdtapSurveysOpinions for about 30 min, minimum buy in for giftcard is 1000 points for $5. I believe you start with around 150 points, you have what seems like infinite surveys, none tell you how long it will take or how much you will make, most are little surveys that take about a minute and you make 3-5 points from each, 3 points for a survey no matter how short or long is ridiculous, after the 30 min I am at about 220 points, the math says that 200 points is $1, it may seem like ive made a good $1.10 in that time but remember that the start bonus contributed to a huge amount of that, I really only made about 40 cents in 25min which is a poor amount. Also the surveys are really repetitive and you often get very similar questions between surveys. App seems new and well designed but survey and reward system has a long way to go.