“The Musterd Roll Call app has been a great success and we have tested it a number of times.”Read the full testimonial
Instant UNSAFE Alerts
The moment a roll call starts, Musterd shows who is UNSAFE and where they were last seen.
In an emergency, the question that matters is who has not reached safety yet. Musterd answers it straight away: anyone on site who is not yet accounted for is flagged UNSAFE, with their last known location.
As people reach a muster point, badge in or are marked safe by a warden, they come off the list, so marshals and incident managers always know exactly who is left to find.
At a Glance
- Everyone not yet accounted for flagged UNSAFE
- The last known location of each person
- The list shrinks as people are marked safe
- Disabled personnel who need help highlighted
- Text anyone still UNSAFE from the app
- Every status change time-stamped
What Instant UNSAFE Alerts does for you
Know at once who has not reached safety
As soon as an evacuation begins, Musterd lists everyone on site who has not yet been accounted for. Marshals see the names that matter, rather than working through a full headcount by hand.
Last known locations to focus the search
Each UNSAFE person is shown with their last known location, so searches start where people are most likely to be. On the site map, unsafe zones stand out from those already cleared.
Act on the alert straight from the app
Text anyone still marked UNSAFE to confirm where they are, and see disabled personnel who need assistance flagged so they are reached first. Every change is time-stamped for the report that follows.
All Musterd Features
Real-Time Data on Any DeviceA cloud-based roll call that shows the same live picture on every modern iOS and Android phone, tablet and specialist device.Learn more
Instant UNSAFE AlertsThe moment a roll call starts, Musterd shows who is UNSAFE and where they were last seen.You are here
Text Unsafe IndividualsSend a text to anyone still marked UNSAFE, straight from the app, to confirm their status and location.Learn more
Interactive Site MapsSee your site as zones on a map, with unsafe areas flagged and cleared areas marked as the sweep goes on.Learn more
Multi-Site ScalabilityFrom a single building to sites across the country, with each muster point run by its own team.Learn more
Remote Incident OversightKeep incident managers and health and safety directors informed, in real time, wherever they are.Learn more
Simple to UseDesigned so staff and fire marshals can run a roll call under pressure, with minimal training.Learn more
Responder Location TrackingTrack the real-time location of fire marshals and responders as they sweep your site.Learn more
Works in Poor VisibilityA roll call that stays clear in darkness, heavy rain or a power cut.Learn more
Disabled Personnel SupportFlag disabled personnel who need assistance, so the people responsible for helping them know at once who to reach first.Learn more
Post-Event Compliance ReportingTime-stamped reports that show how your drills and evacuations performed.Learn more
Martyn’s Law ReadinessReal-time accountability, documented procedures and clear audit trails to help demonstrate preparedness under Martyn’s Law.Learn more
Musterd, in their own words
Accreditations
Hosted on Microsoft Azure, certified to ISO 27001 and Cyber Essentials Plus, and registered with the Information Commissioner’s Office.
Trusted by organisations worldwide
Book a Demo
See Instant UNSAFE Alerts in a live demo
A live, 45-minute guided demonstration of Musterd with a member of our team, who can answer any questions and provide costs. No obligation.


























