No specific info about version 2.3. Please visit the main page of Postgres.app on Mac Informer.
Manage a wide range of databases like MySQL, SQLite or PostgreSQL.
SQLPro Studio is a simple and powerful database manager for Mac OS X.
Powerful yet easy-to-use PostgreSQL graphical interface that provides extensive functionality for managing and developing PostgreSQL database.
TOra is an open-source multi-platform database management GUI.
Cross-platform database administration tool for Mac OS.