Class period timer for teachers
Problem
Student teachers and substitute teachers struggle to track when each class period starts and ends during a chaotic school day, missing cleanup cues and making students late for their next class. Generic timers and clocks don't map to a school's 8-period schedule, so the pain recurs every single day.
Opportunity
A dead-simple app where teachers input their school's period schedule once and get a lock-screen Live Activity showing exactly how much time is left in the current period, with a pre-end cleanup alert.
Market analysis
The exact product described — personal bell schedule with lock-screen Live Activity countdown — already ships in at least two indie iOS apps (ClassBell Alarm, Bell+), so the opportunity is differentiation and distribution, not invention.
Market · Student teachers, substitutes and early-career teachers on fixed bell schedules; the Reddit thread shows daily recurring pain, but the audience is highly price-sensitive.
Pricing · Teacher utilities live at the bottom of the price ladder: low one-time purchases or a few dollars per year; ClassDojo sets the free baseline teachers expect.
Pros
- + Tiny, well-defined scope: one schedule editor plus a Live Activity is buildable in weeks.
- + Daily-use habit during the school year gives strong retention for a small app.
- + Substitutes face a new schedule every assignment — a genuinely underserved sliver of the audience.
Cons
- − Direct matches already exist: ClassBell Alarm and Bell+ both do bell-schedule Live Activity countdowns.
- − Teachers are notoriously price-sensitive; app-store teacher tools rarely sustain meaningful revenue.
- − Usage is seasonal (school year) and hard to reach through school-district app policies.
Existing / similar tools
Source
r/SomebodyMakeThis (Reddit)
Since the generic version exists, the only honest entry points are slivers the incumbents ignore: a substitute-teacher mode where you rebuild today’s schedule in under thirty seconds from a photo of the bell chart, or a cleanup-alert-first design where the pre-period warning is the product rather than a settings toggle. Those are distribution plays — teacher TikTok and substitute-teacher Facebook groups move downloads in this niche far more than feature lists do. Expect a nice side-project income ceiling, not a business: this category behaves like weather apps, where being excellent earns five stars and two dollars.