Free
Free
2 free solves per month · no credit card
Checked 11 Oct 2026
Plans and prices
Ostrol pricing
Mini
Priced on request
Planned short-term access · not yet available · step-by-step solutions · visible verification states
Checked 11 Oct 2026
Pro
Priced on request
Planned longer-term access · not yet available · step-by-step solutions · visible verification states
Checked 11 Oct 2026
Schools
Priced on request
For approved school pilots · organization roles and invitations · classes and assignments · CSV roster import
Checked 11 Oct 2026