This isn’t a “study post”, but an “I suggest you sign up with them post”, as it could lead to you getting paid, either monetarily, or with products.
Unfortunately, what they’ve sent me is user-specific, so I can’t pass it on. I’ve done beta-testing for them a few times, once was paid with a gift card, maybe a check or PayPal the other time.
Another time, I got to beta-test a Logitech product that wasn’t even on the market yet. I didn’t think I was even getting paid for that one, and we had to send it back. A few weeks later, I got a $$$ high-dollar Brand-New Logitech thingy for being a beta tester.
Again, their name is Betabound, and I believe the email I got said they have a Facebook page. Lengthy sign-up page, but I think it’s worth it.