aSc TimeTables is used by 200,000 schools, and you have years of work in your aSc file. So Bildena reads it directly — including the timetable you're running today — and adds a solver that explains itself.
Bildena reads aSc's XML export directly: subjects, teachers, rooms, classes, groups, students and lessons — plus today's timetable, as a finished run.
Instead of a failed run, Bildena names the conflicting rules, and ~65 checks catch problems before you solve.
aSc Substitutions is a separate product. In Bildena, cover and a solver-assigned duty rota are part of every plan.
The solver guarantees no student is ever in two lessons at once, with option blocks running in parallel.
With Bildena School, registers, letters, grades and fees live next to the timetable.
aSc is sold as a one-time licence — third-party listings put it around $99–149. Bildena starts at €490 a year.
A huge community and a long track record. Bildena is new.
aSc runs in the browser and as a Windows app that works without internet.
Room and event booking, a class register and a calendar through aSc and EduPage. Bildena School is new.
In aSc TimeTables, export your data as XML.
Bildena shows what it found — and flags anything it can't bring across — before writing a thing.
aSc's placements arrive as a finished run. Change a rule and re-solve from there.
Solve with Bildena's engine and put the result next to your aSc timetable.
Honestly: Supervisions and time-off constraints are not part of aSc's XML export — you set them up once in Bildena.
aSc is a one-time licence and cheaper up front. Bildena is a yearly subscription with substitution, duty planning and updates included.
€490a year
per school, whatever its size
~$99–149one-time
Third-party listings — not shown on aSc's pricing page
Sources: aSc TimeTables — home · aSc price, third-party listing (unverified) · aSc TimeTables — prices, trial & versions
Both products start with a free month: every feature, with your own school's data, and no card needed.