Documentation. Postgres.app is the easiest way to get started with PostgreSQL on the Mac.
Open the app, and you have a PostgreSQL server ready and awaiting new connections. Close the app, and the server shuts down. Whether you're a command line aficionado, prefer GUIs, or just want to start making things with your framework of choice, connecting to Postgres.app is easy. Upgrading From A Previous Version Starting with Version 9.2.2.0, Postgres.app is using semantic versioning, tied to the release of PostgreSQL provided in the release, with the final number corresponding to the individual releases of PostgresApp for each distribution. The world's most popular open source database. SQLite Home Page. DB2 database software.