Mossy
Volunteer scheduling for trail-crew nonprofits. Hand-off-friendly across rotating coordinators.
by Priya Saldana
Problem
Top 3 problems your customers face
Trail crew leadership rotates yearly
When the volunteer coordinator changes, the spreadsheet system dies with them.
Existing scheduling tools are corporate
SignUpGenius and Doodle don't model 'weather-cancel, reschedule three Saturdays out'.
Volunteers are reached by email and only email
70% are over 50; SMS-first apps lose them on day one.
Solution
Top 3 features that solve these problems
Email-first signup flows
Volunteers don't need to make an account; click an email link, pick a date, done.
Weather-aware reschedule
One-click 'rain out' broadcasts a reschedule date and reopens slots.
Coordinator playbook
Embedded checklists for trail-day setup, sign-in, sign-out, incident reporting.
Crew-leader role assignments
Designate a saw lead, a swamp lead, a first-aid lead per workday.
Unique Value Proposition
Single, clear, compelling message that states why you are different and worth paying attention
Built for the day the coordinator leaves.
Every workflow is documented in-app so the next coordinator can run a workday on day one.
Unfair Advantage
Something that cannot be easily copied or bought
CS person is the volunteer-coordinator community
She speaks at conferences. Buyers literally call us by her first name.
Niche too small for Asana / Monday
$30K ACV/customer in a 3,000-org TAM is invisible to Series B competitors.
Channels
Path to customers
State trail-stewardship associations
WTA, NYNJTC, AMC — sponsor their annual conferences.
Word of mouth between coordinators
These coordinators all know each other and swap tooling at conferences.
Free tier for orgs under 200 volunteers
Drives goodwill and pulls coordinators in before they grow.
Customer Segments
Target customers and early adopters
Small trail-stewardship nonprofits
1–4 paid staff, 200–2,000 active volunteers. Budget under $30K/yr for software.
Friends-of-the-park groups
Even smaller; one paid part-time coordinator who does everything.
Land trusts with volunteer days
Less frequent but bigger crews; need crew-leader role assignments.
Key Metrics
Key activities you measure
Workdays scheduled per org per month
Below 1, the org has churned even if they're still paying. Above 4, they renew.
Coordinator handoff completion rate
When an org changes coordinators, do they keep paying? Target 90%.
Cost Structure
Customer Acquisition Costs, Distribution Costs, Hosting, People, etc.
One engineer + one customer-success person
CS person is a former trail-crew coordinator. ~$180K/yr total.
SendGrid + Twilio
$300/mo at current volume. Email is the hot path; SMS is opt-in.
Conference sponsorships
$8K/yr across 3 state-association events.
Revenue Streams
Revenue Model, Lifetime Value, Revenue, Gross Margin
$59/mo per nonprofit
Flat. No per-volunteer pricing — punishing growth is the opposite of mission alignment.
Annual contracts, 2 months free
Land trusts prefer to budget annually; gets us off month-to-month churn.