easyAsPieDB - COMPLETELY customize the information this app stores and displays
LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
Klevernote - Track. Collect. Never forget.
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
Steward Database - Steward is a personal database for organizing everything. It's easy to use.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.