Downloading pgAdmin3 1.22.2 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The program's installation files are generally known as pgadmin3-1.18.1.dmg or pgadmin3-1.14.0.dmg etc.
The following versions: 1.18 and 1.1 are the most frequently downloaded ones by the program users. The software lies within Developer Tools, more precisely Webmaster Tools. The program is also known as "pgAdmin documentation", "pgAdmin III". This free software for Mac OS X is an intellectual property of PostgreSQL tools. The bundle id for this application is org.postgresql.pgadmin.
From the developer:
pgAdmin is the most popular and feature rich Open Source administration and development platform for PostgreSQL, the most advanced Open Source database in the world. The application may be used on Linux, FreeBSD, Solaris, Mac OSX and Windows platforms to manage PostgreSQL 7.3 and above running on any platform, as well as commercial and derived versions of PostgreSQL such as Postgres Plus Advanced Server and Greenplum database.
You may want to check out more Mac applications, such as Espresso, MAMP PRO or Web Gallery for Mac, which might be related to pgAdmin3.