Fill absences with the right subs in seconds
InstaSubβs easy-to-use substitute management platform helps schools with automated absence management, notifications, and sub hours tracking.

A better way to manage absences and keep learning on track
Be the school where everyone wants to be. InstaSub helps schools reduce the effort and stress of substitute management for teachers, admins, subs, and students.
No more early morning disorder
Lessen frustration and manual work by automating every step, from absence request to confirmation.
Higher fill rates with less effort
Keep classrooms covered more consistently using preferred sub lists and smart notification rules.
Built for busy teachers
Let teachers, admins, and subs manage everything online or from their phones with an intuitive app. No training or phone tag required.
Digital tracking, no spreadsheets
Skip the manual work by tracking absences, hours, and fill performance in one place thatβs ready for pay day.
Request a sub and confirm coverage fast
Improve fill rates and find qualified subs in minutes with automated workflows from assignment to submission to coverage confirmation.


Find the perfect subs for your school
Your teachers care about their studentsβ learning environment. Easily match jobs with the best-fit substitutes to minimize classroom disruptions and maintain consistent curriculums.
Better sub management needs better communication
The easier it is to communicate with your sub pool, the easier it is to fill assignments. Notify subs of openings in real-time, wherever they are on whatever device.


Track absences and sub hours without the spreadsheets
Monitor fill rates, hours worked, and trends in one place with export-ready reports.