Classti feature
A clash-free timetable in minutes, and a proposed substitute for every absence
Instead of weeks of manual edits, the generator builds the timetable from your teachers, classes, subjects and rules, keeps versions of every plan, and proposes the right substitute when a teacher is absent.

What your school gains
No clashes
The generator builds a timetable where no teacher, class or room is double-booked.
Versions you can compare
Every plan keeps versions, so you can go back or compare before publishing.
Smart substitutes
When a teacher is absent, the system suggests the best substitute for the lesson.
Academic calendar and holidays
The academic calendar, official holidays and monthly view work with the timetable.
Everyone sees their timetable
Teachers in their app, parents and students in theirs.
How it works
- 1
Prepare the data
Teachers, subjects, classes, periods and availability rules.
- 2
Generate the timetable
The generator proposes a clash-free plan, and a version of it is saved.
- 3
Adjust and compare
Edit lessons by hand, compare versions and approve the best one.
- 4
Publish and cover absences
The timetable reaches teachers and parents, and a substitute is proposed for each absence.
What is included
- The timetable generator with plans and versions
- The weekly timetable with adding and editing lessons
- The substitutes module
- Monthly view and academic calendar
- Official holidays per country
- Lesson preparation
- Teacher and student timetables in the apps
Frequently asked questions
- Yes. The timetable generator proposes a clash-free plan from your teachers, subjects, classes and rules, and you can adjust it by hand.
- Yes. Every plan keeps versions that you can open and compare.
- The substitutes module suggests the best teacher to cover the lesson, and the change shows in the timetables.
- In the teacher app, and parents and students see the student timetable in their app.
Related features
Attendance
Take attendance from a teacher's phone or with QR cards, track staff attendance and notify parents of absences and late arrivals in one school platform.
Learn more
HR and payroll
Job postings, applicants and interviews, teacher and staff records, attendance and leave, teacher evaluation, and roles and permissions for every user.
Learn more
Gradebook and report cards
Enter grades in one sheet, publish results to parents with a notification, design and sign report-card templates, and keep an academic file for every student.
Learn more
Articles to read
School timetable scheduling tips that save weeks
Practical rules for building a school timetable without clashes: collect constraints first, balance teacher load, plan substitutes and keep versions to compare.
Read the article
See Classti with your school's data
Book a short demo: we show the modules that matter to you, talk through your school's size and branches, and prepare a quote afterwards.