Why cant be free to students ?

uh it's already free..

what more do you want?

Because as a learning app, there is always a fallback of not giving a full experience so they benefit the most in the end

answer; communities of interest; i believe this is correct, plz check first good luck;

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it