Bad Timing & Sticktoitiveness
June 4, 2025 · by Michael Morrison
A decade building a social app, released three weeks before a pandemic. And still not quitting.
Muster
Plan casual get-togethers and recurring group activities — and make it easy to see who's in.
iOS
Made by Michael Morrison. Author, developer, amateur stuntman. One person, 47 books, and shipping games and software since 1992.
What it does
- Lightweight invitations — create a muster for your next ride, session, or pickup game in seconds
- Quick participation signals — everyone taps in or out, so you can see at a glance who’s coming
- Recurring meetups — set up weekly rides, Tuesday night skate sessions, or Sunday pickup without re-creating the event every time
- No calendar bloat — sits outside your work calendar where casual plans belong
Made for real-world crews
Muster is built for the kinds of plans that usually happen in a group chat — the ones where half the coordination is just figuring out who’s actually showing up. It replaces the “who’s in?” thread with something everyone can see.
Get support
Questions or issues? Contact Support
From the lab
View all →Obsession & the Artistic Entrepreneur
August 19, 2024 · by Michael Morrison
When obsessive problem-solving meets entrepreneurship — and fifteen years on one app starts looking more like art than business.