This freebie is ONLY available to the USA market (so far); however, I’m hoping they decide to make it available to Canadians as soon as possible:

” Sally Hansen’s ManiMatch app is the first-ever virtual try-on application for nails, enabling you to instantly try on any shade live. Simply download the FREE app, scan your hand, receive a personalized shade recommendation, and try it on! (SallyHansen.com, free)”