I do realize that they are the district's property, but good
administrators will worth closely with teachers to encourage
them to embrace new technology. It seems your district is
doing the opposite.
My suggestion would be to start by talking with your school
principal. Prepare a list of specific apps that you've paid
for, and tell him why you want them to remain installed on
You might also want to encourage those parent donors to speak
up on this issue as well.
With a little pressure, let's hope your administrators will
listen to reason.