TappBell Mobile is a communication application designed for residential buildings, facilitating seamless interaction between residents and their visitors. The app operates in conjunction with a physical installation at the building's entrance, featuring a vandal-proof cabinet and safety glass, or a virtual model with a printed QR code. Users can configure the app through an administration menu to set up floors, functional units, and owner contacts within the building or gated community.

When a visitor arrives, they can select the desired floor and unit, initiating a high-definition video call with the resident. This allows homeowners to respond to visitors from anywhere via their mobile devices. TappBell prioritizes user privacy, ensuring that visitors do not have access to personal information. Additional features include remote access control for visitors, integration with security cameras, and notifications for emergencies, all managed conveniently through a cloud-based desktop interface.