About Discount Devil

Discount Devil is a Shopify app that gives each of your customers a coupon wallet: a tab in their customer account that holds discount codes issued to them and nobody else. Each code is a real Shopify discount in your own store, bound to that one customer and limited to a single use.

It turns a discount from a string you broadcast into a reward a particular person owns, can see, and comes back to spend.

The problem it solves

A generic discount code is the same for everyone who receives it. It ends up on coupon sites within days, gets used by people you never meant to reward, and feels about as personal as a flyer. The usual fix, minting unique codes by hand, does not scale past a handful of customers, and the codes still live in an email the customer has long since archived.

Nothing in a standard Shopify store gives a customer one place to see what they have earned. A reward they cannot find is a reward they do not use.

What it does

• A wallet tab in customer accounts. Signed-in customers see their available coupons with value and expiry, copy a code, or apply it at checkout in one click. Redeemed and expired coupons fold into a history. You name the tab whatever suits your store.
• Codes bound to one customer. Every code the app creates is restricted to the customer it was issued to, with a usage limit of one. A leaked code is useless to anyone else.
• Campaigns and stamp cards. An instant campaign hands out a coupon in one step. A collectible campaign is a stamp card: N stamps earn a reward coupon automatically, and a repeatable card starts again once it is full.
• Claim links for your emails. Shopify Email cannot put a different code in each recipient’s message. A claim link solves that: one URL in a button, and each customer who clicks it signs in and receives their own code on a page styled by your theme.
• Purchase triggers. A collectible campaign can add a stamp for every paid order, with an optional minimum subtotal, so “buy five, get one” runs on its own.
• Tags for your automations. When a reward is granted the app can add a customer tag, which a Shopify Email automation or Flow workflow can react to.
• Housekeeping. Expiry defaults, discount combination rules, revocation, and an hourly sweep that expires due coupons and records redemptions, so your discount list stays clean.

What it deliberately does not do

The app stores no names, email addresses, phone numbers or addresses; it keeps the Shopify customer id and the records of what it issued. It sends no email itself, because Shopify Email already does that well and already handles unsubscribes. It calls no analytics or advertising services. The discounts it creates are ordinary discounts in your store, visible in your Shopify admin like any other.

Who it is for

Stores on new customer accounts that want to reward particular customers rather than everyone at once: loyalty stamp cards, thank-you coupons, win-back offers, or rewards sent from a Shopify Email campaign. It also serves as the coupon backend for other Ioun apps, such as Birthday Barbarian, when you switch that on.