Yulebox does one thing: advent calendars, also called Christmas calendars, that look made for your brand. Upload this season's artwork and the doors are cut out of it, describe a look and AI designs it in your colours, or pick a ready-made theme. Each shopper can get their own single-use Shopify discount code, so codes can't spread on coupon sites. Shoppers sign up with their email to open doors and join your customers. Set up and test your whole calendar on your store before you decide.

• A calendar made from your own artwork, with the doors cut out of it
• Ready-made themes, or the AI designs one in your colours from a sentence
• A single-use Shopify discount code for every shopper who opens a door
• Email sign-up that adds shoppers to your Shopify customers
• Door stories that tell your brand's story over 24 days, drafted by AI

Every winner gets a single-use code that only works with their own email at checkout, so codes are never shared or posted online. You choose the prizes, the chance of each, how many can be won and a total budget. The draw happens on our server, never in the browser, and the wheel stops when the budget is used. Bots are filtered out invisibly and winners get their code by email. Start from 17 ready campaigns for Black Friday, Christmas and more.

• Codes locked to the winner's email: one use, never shared
• Set the odds, stock per prize and a total budget cap
• 17 ready campaigns: Black Friday, Christmas, Welcome and more
• Pop-up targeting: pages, devices, cart value, non-subscribers
• Klaviyo and Mailchimp: every spin in your own flows