From the founder's post:
1- When customers repay their loans, they can be eligible for larger loans at lower rates (it is almost unheard of for payday lenders to offer better terms).
2- In the top half of our Ladder, customers have the option to have their payments reported to the credit bureaus (payday lenders don’t report).
3- When customers need more time to repay, we don’t charge them extra (payday lenders use rollovers to make more money when their customers struggle).
4- When customers make successful repayments, many can become eligible for a credit card (which is essentially an interest-free short-term loan, if paid on time and in full).