Equity, no matter how it is structured or offered to you, is a gamble.<p>Always get cash, and take equity if it's offered (so long as there aren't any strings attached).<p>Cash will pay your bills today<p>Lotto tickets may never pay you a dime, and can be a drain on you emotionally if you're constantly expecting one to pay off.
When I ran a client facing company I never worked for equity. Working for equity is the same as working for free. It will take valuable time away from your money making projects and your personal "free time" projects.<p>Money is money. Equity is not.<p>Edit: I assume you're in business or moonlighting for profit.
As a business owner, if someone is offering you equity and no cash for an app, then they don't believe enough in their business and neither should you.
In my experience, this is rarely worthwhile as 99% of startups don't even get funded, and without an anti-dilution guarantee (which requires an irrevocable modification to the by-laws of the company, and is STILL not a guarantee), you're unlikely to see anything from the venture.<p>What I would suggest is convertible equity. Take the stock, but get in writing that if the stock isn't worth X by date Y, you have the right (but not the duty) to convert it to debt, payable upon presentation, with a 1.5% per month interest rate if not paid immediately.<p>You're still unlikely to see a dime, but at least you can sell the debt to a collection company if things get bad.