Bizness Apps - Create your own app or become a reseller and build apps for others
MySQL - The world's most popular open source database
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Dropsource - Mobile development platform for building native iOS & Android apps
SQLite - SQLite Home Page