Scheduling +
membership
without the
price tag
The Problem
Private equity firms have been acquiring emergency services software and doubling or tripling subscription fees for departments already stretched thin.Read in The New York Times→
Built for Volunteer Agencies
Scheduling, members, + forms.
One platform.
SMART SCHEDULING
Visual shift timeline with open coverage. Members request shifts in seconds.
EMAIL NOTIFICATIONS
Automatic emails for signup requests, approvals, and schedule changes.
CPR / AED
Dec 2026ValidEMT-Basic
30 daysExpiringEVOC
Mar 2027ValidHazmat Awareness
Jun 2027ValidCERT TRACKING
Track certifications and expiration dates. Automatic alerts before they lapse.
MEMBER DATABASE
Contact info, positions, and certifications—organized and searchable.
Lights & sirens operational
O2 tank level above 50%
"Main O2 at 30% — needs refill before next shift"
Stretcher & straps secured
Glove boxes remaining
4
CUSTOM FORMS
Build forms for rig checks, supply counts, or anything else. Members can flag issues for admin review—notifications go out instantly.
Available · EMT-B certified
Available · EMT-B certified
Partial availability
AI SCHEDULING
AI recommends the best member for each open shift based on availability, certifications, and role fit.
PRIMARY CREW
2/3 filledROLE-BASED SHIFTS
Define required roles per shift. Members sign up for what they qualify for.
CPR Recertification Guide.pdf
2.4 MB · Jan 15
Hazmat Awareness Notes.pdf
890 KB · Jan 10
Vehicle Check Procedure.docx
156 KB · Dec 28
DOCUMENT STORAGE
Training records and important files, securely in the cloud.
| Date | Position | Member | Hours |
|---|---|---|---|
| Jan 22 | EMT | Alex K. | 8 |
| Jan 22 | Driver | Lisa M. | 12 |
| Jan 22 | Officer | Capt. Rivera | 12 |
DATA EXPORT
Export your member data anytime. CSV downloads in one click.
Why Switch
You have options. Here's how they compare.
WhenToWork
Scheduling tool
Handles scheduling, but that's it. No membership database. No certification tracking. You'll need separate tools for everything else.
Pricing
Aladtec
Enterprise platform
Full-featured, but enterprise pricing that costs thousands per year—and grows every year. Need to change your plan? Talk to sales.
Pricing
Muster
Built for you
Scheduling + membership in one platform. Transparent pricing, same for everyone. Self-service—sign up, set up, and manage it yourself. No sales calls. No surprises.
Pricing

Built by a Volunteer EMT
Our scheduling software got too expensive, so I built something better.
I'm Jacob, a software engineer and volunteer EMT at Larchmont Volunteer Ambulance Corps. On the scheduling committee, I watched our software costs climb year after year.
Volunteer organizations run on tight budgets and even tighter time. They deserve tools that respect both.
So I built Muster for us and all of you. 5% of total revenue will be donated to a volunteer fire or EMS agency every month. Read more about it here.
Jacob Tucker
Founder of Muster
Ready to stop overpaying?
Completely free to start. No credit card needed, no sales call required.