aSc TimeTables and Edval alternatives for US schools

Timetabling software places classes, teachers and rooms. Most US middle and high schools also need every student placed from their course requests. nOS builds the master schedule from those requests, explains every request it couldn’t place, and returns the schedule to your student information system.

Updated November 2026

What do timetabling tools do?

They build a timetable of classes, teachers and rooms, automatically or by hand. Some also place students; many leave the students to you. That can be fine when every student in a grade takes the same courses.

  • aSc TimeTables: timetabling software with an automatic generator, as a Windows app or in the browser. Its free trial does everything except export.
  • Tes Timetable (Edval): Edval began in Australia and is now part of Tes. It builds, staffs and rooms timetables, automatically or by hand.
  • TimetableMaster: a web timetabling platform with a free trial. It says students can pick courses and it then creates sections and schedules.
  • FET: a free, open-source program that generates school timetables automatically.

Sources: each vendor’s own pages, October 2026. See the full comparison.

Timetabling or master scheduling?

They overlap. Timetabling often places classes, teachers and rooms. Master scheduling in most US middle and high schools also places each student from their course requests, so the question is how many requests fit, and why the rest didn’t.

What nOS does differently

It starts from your course requests. Before it builds, it works out the ceiling: the most of your requests any schedule could fill with your courses, sections and rules. After the build, every request it couldn’t place gets one of 12 plain-English reasons.

Rules are written as sentences, each marked hard or soft. Every change is staged for you to review before it’s applied.

How does the schedule get back into your SIS?

nOS connects to 19 student information systems, including PowerSchool, Infinite Campus, Blackbaud, Veracross and Skyward. Depending on the system, the finished schedule goes back over its API, as an import file, or as a reviewed handoff file. See every system.

When a timetabling tool is the better fit

  • Every student in a grade takes the same courses, so placing classes and teachers is the whole job.
  • Your school isn’t on one of the student information systems nOS connects to, and you don’t want to use a spreadsheet.
  • You need something nOS doesn’t have, such as the app in a language other than English. See what nOS doesn’t do.

Common questions

Is nOS an alternative to aSc TimeTables?

For schools that schedule students from course requests, yes. nOS builds the master schedule from requests, explains every request it couldn’t place, and returns the schedule to your student information system.

Is nOS an alternative to Edval?

For US schools that place each student from course requests, yes. Edval, now Tes Timetable, builds, staffs and rooms timetables; nOS also places students from their requests and tells you why any didn’t fit.

What is the difference between timetabling and master scheduling?

They overlap. Timetabling often places classes, teachers and rooms. Master scheduling in most US middle and high schools also places each student from their course requests.

Can we try it before we decide?

Yes. The 3-day free trial is the whole product on your own data. You can also book a free demo call first.

Try it on your own requests.

Use the whole product on your own students and data.