Requirements

Postgres.app

Download from http://postgresapp.com/

What's In The Box? Postgres.app contains a full-featured PostgreSQL installation in a single package:

PostgreSQL 9.3.5 PostGIS 2.1.3 Procedural languages: PL/pgSQL, PL/Perl, PL/Python, and PLV8 (Javascript) Popular extensions, including hstore and uuid-ossp, and more A number of command-line utilities for managing PostgreSQL and working with GIS data

Installing Postgres.app

To install Postgres.app, just drag it to your Applications folder and double click.

On first launch, Postgres will initialise a new database cluster and create a database for your username. A few moments after launching, you should be able to click on "Open psql" to connect to the database.

If you'd like to use the command line tools delivered with Postgres.app, see the section on Command Line Tools.

PGAdmin3 1.18.1

It seems the postgress.app installation does not creat a postgress role by default. It created a username luiscberrocal. I could only connect to the database with that user.

Download from http://www.postgresql.org/ftp/pgadmin3/release/v1.18.1/osx/