PRICING 1) 1,25 $ is a lot of money for one (1) completed survey. 2) What prevents a company from doing this themselves (is your added value worth 0.25 $ per survey?)
SAMPLE 1) Charities are arguably not the best motivator for people. 2) In a world focused on the right metrics, your surveys automatically incorporate a bias into the results by only selecting those people who care about charity (to put it very blunt and stereotypical, you will only get tree hugging hippies). Same goes for prizes, but a prize is less about the core identity of your respondent (not a belief).
PITCH VIDEO 1) I felt a world-changing idea when you talked about "in person", was kind of disappointed when I realized it's still a survey with a different incentive 2) Half of the people a survey got mailed to don't respond. That's not a disadvantage, it's an awesome conversion rate. 3) I can't find any information except for that video (maybe a use case). 4) I don't really see a benefit for me as a user. Let's say deliverables: will you give me an SPSS database, a report, an analysis, can I import it in excel?, will it even have forms or is it just a way to give an incentive. Lot's of unanswered questions.
PERSONAL 1) Love the chat box and the 'I'm a real person and founder' part. Not sure how long you will keep it up :). 2) I like that you as a person are part of the brand, something very potent.