Reverse mortgages have become more popular because they allow the borrower to receive loan proceeds that do not require immediate repayment as long as: you remain in your home as your primary residence, do not sell your home, at least one borrower lives in the home, you meet the basic income and credit standards, and follow loan guidelines. 
Obtaining a home equity loan (or home equity line of credit or second mortgage) requires that you have sufficient income to cover the debt- plus, you must continue to make monthly principal and interest mortgage payments. 
With a reverse mortgage you must meet basic income and credit guidelines but you do not make monthly principal and interest payments. Keep in mind you must continue to pay all property related fees, taxes and homeowner’s insurance and maintain the property in good condition.