PSequel vs Spring Data: What are the differences?
PSequel: A free PostgreSQL GUI Tool for Mac OS X. Designed for Yosemite. Written in Swift. PSequel provides a clean and simple interface to perform common PostgreSQL tasks quickly; Spring Data: Provides a consistent approach to data access – relational, non-relational, map-reduce, and beyond. It makes it easy to use data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services. This is an umbrella project which contains many subprojects that are specific to a given database.
PSequel and Spring Data can be categorized as "Database" tools.
Spring Data is an open source tool with 56 GitHub stars and 62 GitHub forks. Here's a link to Spring Data's open source repository on GitHub.