Requires a free Ubisoft account. All you have to do is log in to receive the daily item.

Today’s item is Rayman Classic from the Google Play store.

Free is free

Day 1: Rayman Classic (Google Play)

EDIT
It looks like the items all leaked through the source code. They cleaned it up, but here is the list if they decide not to change it around.
Day 1: RAYMAN CLASSIC on Mobile
Day 2: 30% off Ubisoft Games
Day 3: Exclusive Collection of E3 2016 Cards
Day 4: Ubi30 Exclusive GIF
Day 5: For Honor GIFs
Day 6: Ubi30 360 Image
Day 7: Just Dance Greeting Card
Day 8: Ubisoft DIY Advent Calendar
Day 9: Steep Wallpaper
Day 10: Exclusive Digital Posters from E3 2016
Day 11: Rabbids Holiday Goodies
Day 12: WWW Wallpaper
Day 13: Ubisoft Cocktail Recipes
Day 14: Assassin’s Creed 3 on PC
Day 15: Ubisoft Wrapping Paper
Day 16: 300 Game Giveaway
Day 17: Watch_Dogs 2 Wallpaper
Day 18: Ubisoft Gift Tags
Day 19: Ubisoft Dessert Recipes
Day 20: Ghost Recon GIFs
Day 21: Wallpaper for Mobile
Day 22: Prince of Persia on PC
Day 23: Rayman Legends on PC
Day 24: Splinter Cell on PC
Day 25: The Crew on PC
Day 26: Rayman GIF
Day 27: Steep GIF
Day 28: Exclusive 2017 Digital Holiday Cards
Day 29: Ubi30 Wallpaper
Day 30: Ubisoft Holiday Decorations