Crowcon Companion
Monitor IQ family of devices
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Crowcon Companion - your field companion for Crowcon's IQ range of portable gas detectors.
The Companion app turns your phone into a control center for the UnoIQ, DuoIQ, and DetectiveIQ. Calibrate, bump test, assign operators, and sync instrument data — all without a laptop, cable, or trip back to the office.
Connect your way:
Bluetooth — Pair with nearby detectors to view live data, run calibrations, and manage configuration.
NFC tap — Hold your phone to the back of a detector for an instant compliance check. No pairing, no menus.
Know your fleet at a glance:
Every connected device shows a full status dashboard: battery level, firmware version, compliance state, and connection type. Calibration and bump test due dates are displayed with a clear countdown in days or months, so nothing lapses unnoticed. A detailed condition report confirms the device is fault-free and ready for the field.
Assign detectors in seconds:
Field engineers can assign a detector to an operator directly from the app - over Bluetooth or with a quick NFC tap. No more logging into a portal or waiting for a web workflow. Returns are just as fast, so devices move between people and shifts without friction.
Keep logs and clocks in sync
Read instrument logs over Bluetooth, sync them with Crowcon Connect and keep device clocks accurate with a one-tap time sync. Both work without a sign-in - handy for quick field maintenance between jobs.
See what your detector sees:
Per-channel screens give you deep visibility into the air around your team:
Live gas concentrations with rolling trend graphs
Exposure metrics including STEL and LTEL for toxic gases such as H₂S
Configured Alarm 1 and Alarm 2 thresholds, so you always know when the hardware will trigger
Full sensor metadata — gas type and range, expiry dates, last calibration, last bump test
Built for safety managers and field engineers:
Whether you're a safety manager verifying a detector before a shift, or an engineer maintaining a fleet across multiple sites, Crowcon Companion gives you the confidence that every device in the field is healthy, compliant, and keeping your people safe.
Calibrate, Bump test and configure your IQ device via self-service engineer mode or a Crowcon Connect sign-in.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New Features
- New Logs page: on-device storage, filtering, and review of event and gas logs retrieved from connected gas detectors, with master/detail navigation and per-file diagnostics.
- Manual, targeted synchronisation of logs to Crowcon Connect, with per-file status and retry, available when signed in.
- Engineer Mode: role-based access tiers that unlock service functions such as alarm mute and service-centre profile editing.
Improvements
- Redesigned DetectiveIQ bump test and calibration screens with a responsive layout that adapts to different window sizes.
- Redesigned configuration screens with grouped settings, time synchronisation, and time-zone configuration.
- Bundled default calibration levels so calibration can proceed offline.
Bug Fixes
- Calibration reports now save reliably even when the destination folder is on OneDrive or does not yet exist.
- More reliable exit from bump test and calibration, with the dashboard refreshing automatically afterward.
- Corrected log-upload retry handling so transient errors retry while authentication failures stop promptly.
The developer, Crowcon, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Crowcon Detection Instruments Ltd
- Size
- 67.4 MB
- Category
- Business
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 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+
- Copyright
- © 2026 Crowcon Detection Instruments Ltd