ZBI HMS — The System That Transforms Hotel Management

In hospitality, simplicity isn’t just convenience — it’s efficiency.
ZenBox Infinity HMS (Hotel Management System) is built on the same philosophy that
shaped the entire ZBI ecosystem: bringing clarity, automation, and control to every part of
business operations — without monthly fees or cloud dependency.

Developed from real-world hotel management experience, ZBI HMS unites reservations,
guests, rooms, finances, cleaning, communication, and reporting into one seamless, intuitive
desktop application.
Fully offline, secure, and license-protected.

Key Functionalities

1️⃣ Reservations & Calendar
Manage all reservations with full precision — create, modify, cancel, or confirm bookings
with a single click.
The integrated visual calendar provides a real-time overview of occupied and available
rooms, including color-coded statuses and quick actions.
Benefit: Prevents double bookings, saves time, and centralizes all reservation data.

2️⃣ Guest Management
Guest database with contact details, visit history, preferences, and notes.
Linked directly to reservations and invoices for faster operations.
 Benefit: Helps build strong guest relationships and speeds up check-ins.

3️⃣ Room Management
Organize rooms by type, capacity, and price.
Room status (available, occupied, cleaning, maintenance) updates automatically based on
reservations.
Benefit: Provides real-time insight and better coordination with cleaning staff.

4️⃣ Finance & Invoicing
Automatically generates invoices per reservation with all relevant data.
Includes revenue overviews by period, guest, or room, with exportable reports.
Benefit: Eliminates manual calculations and ensures accurate, professional billing.

5️⃣ Cleaning & Task Management
Tracks cleaning and maintenance tasks, assigns them to staff, and monitors progress (in
progress, completed).
Benefit: Improves organization, accountability, and cleanliness.

6️⃣ Email & Booking.com Integration
ZBI HMS features an automated email system and Booking.com ICS calendar
synchronization.
When a reservation or invoice is created, the system automatically sends a professional
HTML email with the hotel’s logo.
Through the built-in ICS server, Booking.com synchronizes occupancy in real time to
prevent overlaps.
Benefit: Professional communication, automated sync, and significant time savings.

Features:
• Automatic sending of invoices and booking confirmations
• Retry logic and failed email logging

• Token protection for ICS links per room
• Real-time synchronization (RFC 5545 standard)
• Simple configuration within settings

7️⃣ Licensing & Settings
Licenses are activated via hardware ID — available in Demo, Premium, or Unlimited
versions.
The system includes database backup options, language selection, and SMTP configuration.
Benefit: Security, independence, and easy activation.

Reliability, Security & Data Ownership
All data is stored locally — no cloud servers or third parties.
ZBI HMS uses an SQLite database for speed and safety, with automatic backups and multi-
user support.
Benefit: Complete data ownership and protection from unauthorized access.

In Practice
ZBI HMS is designed for hotel, apartment, and villa owners who want a professional system
without relying on external services.
Installation takes just a few minutes, setup is straightforward, and all modules work
completely offline.
From day one, users can manage reservations, send confirmations, and synchronize
calendars with Booking.com automatically.

Why Choose ZBI HMS?
• All-in-one solution: reservations, finances, guests, and cleaning
• No subscription — lifetime license
• Works offline, fast, and securely
• Perfect integration with Booking.com
• Built for hospitality professionals
• Simple, clear, and modern interface

Call to Action
Visit zenboxinfinity.com

Discover ZenBox Infinity HMS — a system that brings clarity, automation, and precision to
every hospitality business.
✍️ Author: Bojan Tešić
Founder of ZenBox Infinity — merging finance, controlling, and hospitality into one clarity-
driven system.