Coolest app I've seen in 2016 – Tine Tag: Interactive sticker Review

Amazing update! TINE is so simple and yet so amazing. I can't believe someone didn't come up with this earlier! I just mailed a card to my sister and added a TINE tag where I'm singing happy birthday. I can't wait till she sees it!
Review by Theviksf on Tine Tag: Interactive sticker.