Postgres.app is described as 'The easiest way to run PostgreSQL on the Mac' and is an app in the Network & Admin category. There are six alternatives to Postgres.app for a variety of platforms, including Windows, Mac, Linux, MySQL Community Edition and MariaDB. The best alternative is Tableplus. It's not free, so if you're looking for a free alternative, you could try Beekeeper studio or EMS SQL Manager for PostgreSQL. Other great apps like Postgres.app are DBngin (Free), PostgreSQL Maestro (Paid) and modelDBA (Free Personal).
TablePlus is a native app which helps you easily edit database data and structure. TablePlus includes many security features to protect your database, including native libssh and TLS to encrypt your connection.
Free & Open Source SQL editor and database manager. Works with MySQL, Postgres, SQLite, SQL Server, Maria DB, CockroachDB, RedShift and more. Available for Windows, Mac, and Linux. Great features: - Clean, tabbed interface for SQL editing.