Schedual's IB schedule maker doesn't ask you to fit pieces together. You give it your teachers, rooms and student choices — it searches millions of arrangements and returns one that breaks no rules.
Most “schedule makers” are really just a nicer grid to drag classes onto by hand — you still do the thinking. Schedual is different: it runs a constraint-satisfaction solver, the same class of engine used to route fleets and plan factories, applied to your school’s timetable.
You describe the rules once — HL and SL weekly minutes, teacher availability, room capacity, subject-group minimums, per-student subject choices, lunch and break windows — and the solver explores an enormous space of possible schedules to find one where every rule holds at the same time. What takes an admin two weekends takes the solver seconds.
The IB requires 240 hours over two years for HL and 150 for SL. The solver treats these as hard constraints, not reminders — every subject lands with the right weekly load.
In the Diploma Programme each student’s six chosen subjects must fit together with no clashes. The solver schedules at the individual level, not the cohort level.
No teacher is double-booked, no room over capacity, no specialist expected in two places at once.
For MYP, the eight subject groups each hit their IB-mandated minimum weekly minutes across MYP1–MYP5.
If your data makes a valid timetable impossible, the solver tells you which constraint can’t be met — before it wastes an hour pretending.
Prefer to place a class yourself? Drag it — the solver validates the move live and re-flows the rest around it.
A small Diploma cohort of about 30 students solves in roughly 15 seconds. A full IB school of around 500 students across PYP, MYP and DP typically completes in 60 to 90 seconds — on a dedicated solver, so your browser never freezes and you can leave the page while it runs.
Because it’s this fast, the schedule stops being a once-a-year ordeal. A teacher leaves in October? Change one input and regenerate three variants before lunch.
IB (PYP, MYP, DP and CP), UK GCSE and A-Level, Cambridge IGCSE, the French Baccalauréat, and US high schools — each as its own first-class system on the same solver, with curriculum-appropriate constraints. You choose your curriculum when you set up your school.
A small cohort of about 30 students takes around 15–30 seconds. A full school of about 500 students typically completes in 60–90 seconds. Generation runs on a dedicated solver, so your browser never blocks.
Update their availability and re-generate — the schedule rebuilds in under a minute. Manual drag-and-drop edits are also supported, with live conflict validation before you drop a class into a new period.
On dedicated EU infrastructure, with daily encrypted backups and 30-day object lock for ransomware protection. Row-level security keeps every school’s data fully isolated.
Set up your curriculum in an afternoon and generate a clash-free week before you leave.