If you're feeling a little cash-strapped this summer, services are available to help with unplanned expenses, from cash advance apps to “buy now, pay later.”

But if you're thinking about trying one, make sure you look past the annual percentage rate, or APR.

Many of these services come with hidden fees that actually make it much more expensive to borrow.

The be Well team was joined now by Rodney Williams, co-founder of Solo Funds, a community lending platform backed by Serena Williams.