QSB - Quick Simple Bot is a free Chrome add-on developed by Roman Vinnichenko. This add-on is designed to simplify the process of sending invitations in the chat on Svadba.com, a popular wedding website.

With QSB - Quick Simple Bot, users can send invitations to multiple profiles simultaneously. The add-on also allows users to choose different notification sounds for each profile and provides a pop-up window when a chat appears.

One of the key features of QSB - Quick Simple Bot is the ability to display the active chat time for each male user. Additionally, users can create blacklists and whitelists for individual profiles or the entire agency. The add-on also notifies users when a new admirer shows interest.

Furthermore, users can add notes for any male user and utilize message templates for the first message, profile viewing, and Soulmate messages.