I'm testing these apps that promise extra income by playing and I found some that actually work, at least for those who have patience. It's not to get rich, but it does earn some pocket money.

Cash App is the most practical because it withdraws directly to Pix, without the detour through PayPal. But if you don't mind an extra step, there are CashPirate and Make Money that pay well too — just transfer from PayPal to Pix afterward. AppKarma works well for those who like variety, mixing games with surveys and friend referrals.

There are more interesting options like Toloka, which is more task-based than a game, but it pays for real. Big Time offers bigger prizes but depends on a lottery, so it's more like gambling than anything else.

What I noticed is that no app that pays for playing will make you rich quickly. It works better if you do it every day, completing simple tasks, testing partner apps, answering surveys. At first, it earns about 20-50 reais per month, then improves a bit as you gain experience.

The biggest caution is not to fall for fake apps that ask for an initial deposit. Legitimate ones don't charge anything to start. And if cashing out becomes too complicated or takes too long, that's already a sign it's not worth it.

For those who want something more serious, like real investing, then it's worth studying more about the stock market, ETFs, and cryptocurrencies. But for quick pocket money while studying, these apps work.