PASS app or CD?

Hello everyone, Im sure a lot of you know of the App PASS. For those of you who don't its an app where you (photographer) can share your events with your clients and they can download the app anywhere(laptops,iphon​es,smartphones,ipads, tablets...) and download the pictures. I know a lot of clients prefer to have their pictures in a cd. There are plenty of pros and cons for both. I love PASS and I'm slowly starting my own photography business and I would like to use PASS as my method of sharing the pictures. for those who know more about the business, will this affect my business? will I lose clients?
Thanks!

It will cost you more than the cost of a CD.

memoriesoftomorrow wrote in post #16237657
It will cost you more than the cost of a CD.

This. Also if you have your own website you can easily set up a way for people to download the photos making the cost much cheaper. Like zenfolio. It is very easy to set up zenfolio so that people can download images from the client galleries at no cost to them. Zen is only $120 a year and you get many more features than you do with PASS.