Congrats!! Both schools would be lucky to have you. Do they both have the resources that you would want or need to reach your own personal goals? Which school do you think will help you to develop in the next 4 years?
As for the iPads vs computer issue, Andover doesn’t give students a device to use, so you would have to buy and bring your own.
It’s a tough choice, but I think that whichever you choose will be the right choice.