Find a sub before the 6am class
An instructor wakes up sick at 4:45am and their class is at 6. The members are already setting alarms. Airhorn sends one text to every instructor certified to teach it, and the first YES gets the class.
Sub requests are the whole job
Most studio managers keep a mental list of who can teach what. At 4:45am, that list becomes a series of one-by-one texts. A broadcast asks everyone at once — and on Plus, you can keep groups by format (cycling, yoga, HIIT) so a spin sub request doesn’t go to the yoga teachers.
What gyms and studios broadcast
- Class sub requests. “Need a sub: 6am Cycle tomorrow. Reply YES.”
- Front desk coverage for opening and closing shifts.
- Facility problems. AC out, pool closed, showers down — things members will ask about.
- Schedule changes for holidays and new class timetables.
- Team meetings and trainings — CPR recertification, new equipment.
Instructors are often contractors
Many trainers and instructors work for several studios and aren’t employees. That makes consent matter more, not less: Airhorn sends each person an opt-in text, they reply YES, and they can reply STOP at any time. Their number never appears to anyone else on the list.
Early morning sends
A 4:45am sub request should be marked urgent so it goes out immediately — non-urgent broadcasts written overnight wait until 8am.
What it costs a 15-person studio
Fill the class, not the group chat
Sub requests to the right instructors, with no reply-all. $5/mo plus $0.75 per person.
Free for 7 days and 60 messages — no credit card. Your trial starts when you send your first broadcast, not when you sign up.