The GNOME Core Applications (also known as Apps for GNOME) are a software suite that is packaged with GNOME, a free and open-source desktop environment. The suite provides a consistent look and feel to the GNOME desktop, utilizes the Adwaita design language and tightly integrates with the GNOME desktop. The suite is developed and maintained through GNOME's official GitLab instance.
Configuration
Settings – main interface to configure various aspects of GNOME. Diverse panels represent graphical front-ends to configure the NetworkManager daemon and other daemons.
GNOME Settings
Communication
Contacts – the contacts book app
Files
Document Scanner (Simple Scan) - Application for operating printer scanners.
GNOME Circle is a collection of applications which have been built to extend the GNOME platform, utilize GNOME technologies, and follow the GNOME human interface guidelines. Developers who are using the GNOME platform can apply for inclusion in GNOME Circle. Benefits include promotional support and eligibility for project contributors to become GNOME Foundation members. Circle applications are not part of GNOME Core Applications.