bacbus
BACnet and Modbus for mobile
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A field-ready BACnet/IP and Modbus/TCP tool. Discover objects, poll live values, and write points — all from your phone.
BacBus puts a BACnet/IP and Modbus/TCP toolkit in your pocket.
Whether you're commissioning a new install, troubleshooting a rooftop unit, or verifying a controller in the field, BacBus connects you to your building network in seconds — no laptop, no proprietary gateway, no clunky
software.
DISCOVER
Scan your network and find BACnet/IP devices instantly. BacBus reads the objects other tools miss — where some scanners come back empty, BacBus pulls the full object list so you can see exactly what's on the wire.
READ
Poll live values from any point. Watch present-value, status flags, units, and object names update in real time. Read is always free.
CONTROL (Pro)
Write to points and command overrides right from your phone. Test a damper, force a setpoint, or verify a sequence on site — no truck roll back to the laptop.
MODBUS/TCP
Connect to any Modbus/TCP device, scan registers, and read or write coils and holding registers. Works with sparse and non-standard register maps.
BUILT FOR THE FIELD
• Fast, native interface that works on cellular or site Wi-Fi
• No account required to start scanning and reading
• Handles real-world devices from major manufacturers
• Designed by a controls integrator, for controls integrators
FREE TO START
Scan and read as much as you want, free. Unlock point control (writes and overrides) with a single one-time purchase — no subscription.
Download BacBus and turn your phone into the only field tool you'll reach for.
Ratings & Reviews
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The developer, Harness Automation, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Harness Automation, LLC
- Size
- 8.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- BacBus Pro $29.99
- Copyright
- © 2026 Harness Automation
