There are several apps available to pay rent, each with its own features and benefits. Some of the best online rent payment systems include PayRent, Avail, Baselane, Hemlane, RentRedi, Rentec Direct, TurboTenant, Azibo, Stessa, and more. RentRedi in particular offers a free mobile app and its deposit feature makes it easy for tenants to pay their monthly rent on time.