Hello,
I am a recent grad of a Multimedia Design and Development program at Humber College, Toronto, and I have designed and prototyped a few apps already. I mostly use Illustrator, Photoshop and Invision, although I can also use Pixate (which allows for more depth) and xCode (limited use only). Please feel free to check out my portfolio at http://olgakham.com.
Looking forward to hearing from you.
Best regards,
Olga