ziplogix Digital Ink is an electronic signature software offering from ziplogix. It includes features such as specific design for the real estate industry and digitally signing documents.
ZipLogix is a bit slower and more cumbersome of an interface than Adobe Sign, but again, automatic integration is key. Annoying that on Adobe Sign when adding a signature field it doesn't automatically add a date signed field, whereas ZipLogix DIgital Ink 1.0 does, but not 2.0