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What are the best Shopify apps for a Boxing Day sale in 2026?

Who this list is for

This list is for Shopify merchants in the United Kingdom, Canada, Australia and New Zealand who run a Boxing Day sale, and for any store that sells to shoppers there. In 2026, Boxing Day is Saturday, December 26. In England, Wales, Scotland and Northern Ireland, the Boxing Day bank holiday moves to Monday, December 28 (GOV.UK bank holidays). Some stores keep the sale running until New Year, as a Boxing Week sale. We update this page every year before the season starts.

We picked one app for each Boxing Day job: discounts, free gifts, bundles, countdown timers, a free shipping bar, and email and SMS. Every rival rating, price and free plan below comes from the app's Shopify App Store listing, checked on November 12, 2026. App Store prices are billed in US dollars, per month, and can change.

Shopstack makes Discount Genie, one of the apps on this list. It is listed first, and every other app is described from its own listing.

What Shopify does for free

Shopify's own discounts can run a simple Boxing Day sale: a percentage or fixed amount off, a Buy X Get Y deal, or free shipping, each with a start date and an end date (Shopify's discount help, checked November 12, 2026). These are the desktop steps for a Boxing Week clearance on one collection, for shoppers in one market.

  1. From your Shopify admin, go to Discounts, click Create discount, and in the Select discount type menu click Amount off products.
  2. Under Method, select Automatic discount and enter a title, for example Boxing Week 30% off.
  3. In the Discount value section, enter 30 as a percentage.
  4. In the Applies to section, select Specific collections and add your clearance collection.
  5. In the Eligibility section, select Markets, then add the market the sale is for, for example the United Kingdom.
  6. Under Active dates, pick December 26 as the start date, click Set end date, and pick January 3.
  7. Click Save.

Shopify can

Shopify can’t

  • Keep a fixed-amount discount steady across currencies. Shopify converts it to the shopper's currency at checkout, so the amount moves with the exchange rate. Source: help.shopify.com
  • Run tiered discounts with its own discount types. Shopify points stores that need tiered discounts to apps. Source: help.shopify.com
  • Have more than 25 active automatic discounts. Discounts created by apps count toward the 25. Source: help.shopify.com

If you sell in several currencies, use percentage discounts for Boxing Day, so 30% off is 30% off in pounds, Canadian dollars, Australian dollars and New Zealand dollars alike.

Discount Genie: discounts and promo codes

Discount Genie (by Shopstack, the team behind this guide) has 5.0 from 50+ reviews on the Shopify App Store. It is a discount app for stores whose Boxing Day sale is more than one flat percentage. Install Discount Genie from the Shopify App Store.

  • A cap on a clearance percentage, for example half off up to £100, so one large cart can't take a huge discount. See discount caps.
  • Spend more, save more: one discount with tiers, for example £10 off £100 and £25 off £200. See tiered and volume discounts.
  • Unique codes for your email list: the bulk code generator makes one code per subscriber and sends codes through your Klaviyo flows. See bulk discount codes.
  • Payment method and store pickup discounts, for example 5% off when a shopper pays by bank transfer, or a discount for click and collect. Both are on every plan, the basic free plan included. See discount by payment method.
  • Start and end dates on each discount, and theme blocks that show your offer with badges, banners and a countdown timer that can hide itself when time runs out. See show discounts on your store.

Plans. The basic free plan covers up to 3 basic discounts, promo code rejection rules, payment method discounts and store pickup discounts. Paid plans add all 11 discount types, the bulk code generator and the Klaviyo integration. New stores pay $0.99/mo for the first 3 months on any monthly paid plan. After that, the plan follows your Shopify plan: Core $29.99, Growth $59.99, Pro $79.99, or Scale $99.99 for Shopify Plus stores, per month in US dollars. For stores that install now, gift with purchase is only on the Scale plan, for Shopify Plus stores.

Discount Genie has no bundle builder, no free shipping bar and no email sending of its own. Use the apps below for those jobs.

BOGOS: free gifts and BOGO

BOGOS runs BOGO, Buy X Get Y and free gift with purchase offers. It can add the gift to the cart automatically or show a free gift popup, and it adds bundles, volume discounts and a progress bar. It is rated 5.0 from 4,679 reviews. The free plan covers 30 free orders by BOGOS for the lifetime of the store. The Basic plan is $29.99 a month for 300 monthly orders, then $0.05 per extra order, and it is only for Shopify Basic stores, per its Shopify App Store listing, checked November 12, 2026.

Kaching Bundles: quantity breaks and bundles

Kaching Bundles shows quantity breaks, volume discounts and bundle offers on product pages, with built-in A/B testing. It is rated 5.0 from 6,700 reviews. It is free only for development stores. The Starter plan is $14.99 a month for up to $1,000 of additional revenue, per its Shopify App Store listing, checked November 12, 2026.

Essential Countdown Timer Bar: a countdown to the sale's end

Essential Countdown Timer Bar by Essential Apps adds countdown timers to the top bar, product pages and landing pages. It is rated 5.0 from 1,737 reviews. The free plan covers up to 1,000 timer views a month. The Starter plan is $6.99 a month for up to 10,000 views and adds scheduled and recurring timers. The Essential plan, $9.99 a month, adds cart and email timers and geo-targeting, per its Shopify App Store listing, checked November 12, 2026.

Free Shipping Bar by Hextom: free shipping per country

Free Shipping Bar by Hextom shows a message such as "Spend £20 more for free shipping" that updates as shoppers add items. It is rated 4.9 from 3,047 reviews. The Basic plan is free. The Premium plan is $9.99 a month and adds unlimited active bars, geo targeting with Shopify Markets, auto currency conversion and auto scheduling, so each country can see its own goal, per its Shopify App Store listing, checked November 12, 2026.

The bar only shows the message. The free shipping itself is a Shopify free shipping discount with a minimum purchase amount.

Klaviyo: Boxing Day email and SMS

Klaviyo sends email, SMS and WhatsApp campaigns and automated flows, which is where Discount Genie's unique codes go. It is rated 4.7 from 3,439 reviews. The free plan covers up to 250 active profiles and 500 emails a month. The SMS plan is $15 a month for up to 1,250 SMS and MMS credits, and Klaviyo may bill some charges separately from your Shopify invoice, per its Shopify App Store listing, checked November 12, 2026.

Omnisend: email, SMS and popups

Omnisend sends email, SMS and web push, and collects emails with popups and signup forms before the sale. It is rated 4.7 from 3,205 reviews. The free plan covers emails to up to 250 people and 500 emails a month. The Standard plan starts at $16 a month for up to 500 contacts and rises as your list grows, per its Shopify App Store listing, checked November 12, 2026.

All the apps side by side

Ratings and prices are from each Shopify App Store listing, checked November 12, 2026, per month in US dollars.

AppBoxing Day jobRatingFree planCheapest paid plan
Discount GenieCapped clearance, tiers, unique codes, payment method discounts5.0 from 50+ reviewsBasic free plan (up to 3 basic discounts)$0.99/mo for the first 3 months, then $29.99
BOGOSFree gifts and BOGO5.0 from 4,67930 orders, lifetime$29.99
Kaching BundlesQuantity breaks and bundles5.0 from 6,700Development stores only$14.99
Essential Countdown Timer BarCountdown timers5.0 from 1,737Up to 1,000 views a month$6.99
Free Shipping Bar by HextomFree shipping bar per country4.9 from 3,047Yes (Basic)$9.99
KlaviyoEmail and SMS4.7 from 3,439Up to 250 profiles, 500 emails a month$15 (SMS)
OmnisendEmail, SMS and popups4.7 from 3,205Up to 250 people, 500 emails a monthFrom $16

Boxing Day timeline

Use these dates for 2026. Every discount starts and ends at midnight in your store's time zone, so a store set to London time starts its sale at midnight in London.

  • By December 18: install your apps, build each offer, set its start and end dates, and check its Combinations settings. Count your active automatic discounts: Shopify allows 25, and app discounts count toward the 25.
  • December 24 and 25: send the email that announces the sale, with a unique code for subscribers if you use one.
  • December 26: the sale starts at midnight. Your Christmas offers should have ended by now; see Shopify Christmas sale ideas.
  • December 28: the UK Boxing Day bank holiday. Keep UK offers running through it.
  • January 3: the Boxing Week sale ends on the end date you set.

FAQ

What is the best Shopify app for a Boxing Day sale?

Discount Genie runs the Boxing Day discounts Shopify can't: capped clearance percentages, spend-more-save-more tiers and a unique code for each email subscriber. It has a basic free plan, and new stores pay $0.99/mo for the first 3 months on any monthly paid plan.

How do I set up a Boxing Day discount on Shopify?

Create an Amount off products automatic discount on your sale collection, pick December 26 as the start date, and set an end date. In the Eligibility section, select Markets to run it only for one country, such as the United Kingdom.

Should I use a percentage or a fixed amount for an international Boxing Day sale?

A percentage. Shopify takes the same percentage off in every currency, but it converts a fixed amount to the shopper's currency at checkout, so a fixed discount changes with the exchange rate.

When does my Boxing Day discount start for shoppers in another country?

At midnight in the time zone set in your Shopify admin, not the shopper's time zone. A store on London time starts its sale at midnight in London, which is still Christmas Day evening in Canada.

Can I run a Boxing Day sale for UK shoppers only?

Yes. In the discount's Eligibility section, select Markets and add only your United Kingdom market. Shoppers in your other markets don't get the discount.