시그널링 is a lifestyle Android app developed by Vespexx, offering features tailored for couples. Users can manage their schedules through a shared calendar, eliminating the need to constantly inquire about each other's plans. The app provides a calendar widget for quick and easy access to each other's schedules.

Additionally, users can swiftly share their statuses, allowing for easy expression of emotions and thoughts that might be challenging to communicate verbally. By offering a private messenger space, 시그널링 aims to facilitate love-filled conversations away from crowded messaging apps. The app also provides a couple-centric view of information on the home screen, including schedules, couple D-days, and brief notes.