Individual schools are priced as follows and pricing is published here.
All prices are per school for a one year license.
Primary and special schools - £295
Secondary schools - £495
Independent and middle schools are priced based on their phase. Very small secondary phase schools are charged as a primary school.
Discounts
A 10% discount is offered to schools with a member of ASCL, LASBM or ANME.
Discounts for trusts and other school groups
Discounts for groups of schools start at 20% for two or more schools. Read about this here.