HEIDI is a mobile application designed for residents of the "ISKCO-CH" housing company in the New City residential area. The app offers various features such as communication through built-in chats with neighbors and the "New City" management team, enabling voting on communal decisions, and swiftly submitting maintenance requests. Users can also monitor and transmit apartment meter readings to the management company, receive and pay utility bills, and track their expenses.

Additionally, residents can control gates and barriers within the residential area, answer calls from the intercom system on smartphones or regular phones, and view images from surveillance cameras in parking lots and playgrounds. For residents of the Welltown residential complex, HEIDI allows remote management of the "Smart Home" system, offering convenient scenarios with intuitive settings, real-time sensor and appliance control, alerts for emergencies, and the ability to connect and purchase new devices.