Its not free for schools I am afraid, pricing can be found here: On-demand Help desk, Customer Support & Service SaaS from OP Software - Educational Pricing
If you need longer than 14 days this can be arranged. Have you requested a trail already?
i am very interested in you My Little Help Desk software.
I have downloaded it for trial (14 days) Is this free to use by school.
Want to have it for more than 14 days to show the school that we need it.