Echo Bundle ranks among the best Shopify apps for custom product bundles. It lets merchants create volume discounts, BOGO deals, fixed packages, and promotional offer tiers with simple storefront widgets and automated checkout rules. 

Stagnant order values and inventory sync errors frustrate Shopify merchants daily. The best Shopify apps for custom product bundles can be of use in such a scenario. 

These app types turn single-item buyers into high-value customers. They fix clumsy checkout flows and broken discount codes.

But where do you find such apps? Well, you can find those in this guide. It reviews top bundle software, pricing options, features, and inventory tools. You will find the right app for your exact sales strategy.

Best Shopify Apps for Custom Product Bundles at a Glance

Compare the top software options below to find the ideal feature match for your store.

App	Best for	Custom bundle capability	Free option	Starting price
Echo Bundle	Promotional custom bundles	Product, variant, fixed, multipack, quantity, and promotional bundles	Yes	$9/mo
Easy Bundles: Bundle Builder	Build Your Own Box	BYOB, build-a-box, mix-and-match, custom bundles	Yes	$29/mo paid tier
Simple Bundles & Kits	Inventory-heavy bundles	Dynamic bundles, kits, mix-and-match	Yes	$14/mo
FoxSell Bundle Builder	Complex bundle experiences	Build-a-box, mix-and-match, fixed and volume bundles	Yes	$49/mo
BOGOS: Free Gift Bundle Upsell	BOGO and mix-and-match promotions	Mix-and-match, bundle builder, gift offers	Yes	$29.99/mo
Bundler – Product Bundles App	Affordable general bundling	Mix-and-match, fixed, volume, and tiered bundles	Yes	$9.99/mo
Pumper Bundles Quantity Breaks	Quantity discounts	Quantity breaks, bundles, BOGO, volume discounts	Yes	$9.99/mo
Kaching Bundles App & Upsells	Easy quantity/volume bundles	Quantity breaks, BOGO, gift offers, bundles	Dev store	$14.99/mo
Unlimited Bundles & Discounts	Affordable bundle variety	Standard, quantity, mix-and-match, BOGO	Yes	$9.99/mo
Rapi Bundles & Upsell app	Beginner-friendly bundle creation	Bundles, BOGO, quantity, gift offers	Yes	$15/mo

What Is a Custom Product Bundle in Shopify?

A custom product bundle groups multiple items or variants into a single offer. 

Customers get curated packages or build their own mixes, while backend tools track each SKU’s stock automatically. 

Merchants use five core bundle structures to scale average order value.

• Fixed Product Bundles: Preset item sets created directly by the merchant. Customers buy the complete package as listed.

Example: Shampoo + conditioner + hair mask.

• Mix-and-Match Bundles: Flexible offers where shoppers choose specific items from a set collection.

Example: Choose any 3 snacks from a list of 10.

• Build Your Own Box: Interactive, multi-step builders where customers pick items and quantities to fill a package.

Example: Pick 6 custom chocolates to fill a gift box.

• Quantity-Based Bundles: Tiered pricing structures that drop unit costs as buyers add more items.

Example: Buy 2 items save 10%, buy 4 items save 20%.

• Promotional Bundles: Incentive-driven offers linked to quantity breaks, BOGO rewards, free gifts, or shipping perks.

Example: Buy a jacket, get a free hat.

Best Shopify Apps for Custom Product Bundles

Here are the top Shopify bundle apps. Read them and evaluate pricing tiers, primary capabilities, and free options. 

1. Echo Bundle

Best for: Product bundles, quantity breaks, volume discounts, BOGO offers, free gifts, and shipping incentives.

Echo Bundle targets merchants who want to run promotional campaigns that compel customers to add extra items to their cart. 

The app goes far beyond basic fixed product combinations by integrating flexible promotional rules. 

Store owners can deploy fixed packages, multipacks, variant combinations, custom offer sets, quantity breaks, volume discounts, tiered pricing drops, BOGO deals, free gift rewards, dynamic pricing, and shipping incentives from a unified and simple backend.

Key Features:

• Product & variant bundles: Group complementary items or specific variants into single packages.
• Quantity breaks & volume discounts: Apply tiered price drops as cart quantities grow.
• BOGO & gift rewards: Trigger Buy X Get Y deals and automated free gift additions.
• Shipping incentives: Display progress bars that reward high order counts with free shipping.
• Customizable widgets: Adapt layout styles to match standard themes or page builders like PageFly.

Pros:

• Free plan covers up to $500 in monthly bundle sales.
• Combines multiple promotional models into a single app.
• Triggers automated free gifts and shipping incentives.
• Customizes quickly without coding experience.
• Integrates smoothly with top page builder apps.

Cons:

• Lacks complex multi-step box-building layouts.

Pricing:

• Free plan: Free up to $500 monthly bundle revenue.
• Starter plan: $9/month.
• Growth plan: $19/month.
• Premium plan: $49/month.
• Note: All paid plans include a 14-day free trial.

Echo Bundle works best when pairing custom bundles with promotional mechanics like volume discounts, BOGO deals, or shipping incentives.

2. Easy Bundles: Bundle Builder

Best for: Build Your Own Box and guided custom bundle experiences.

Easy Bundles ranks among the best Shopify apps for custom product bundles when stores require guided, customer-led purchasing. 

It suits merchants who need interactive workflows where shoppers assemble personalized packages rather than buying static sets.

The software powers guided step-by-step box builders, custom gift creation flows, fixed-price deals, and tiered discount structures. 

It syncs stock automatically with third-party logistics and handles multi-currency storefronts with ease.

Key Features:

• Build Your Own Bundle (BYOB): Interactive multi-step box builders.
• Mix-and-match: Customer-selected item combinations.
• Flexible pricing: Fixed rates, quantity breaks, and tiered discounts.
• Variant selection: Granular control over size, color, and options.
• Storefront customization: On-brand layout templates and custom fields.

Pros:

• Delivers engaging step-by-step box-building experiences.
• Syncs stock automatically with inventory tools and 3PLs.
• Supports multi-currency and multi-language storefronts.
• Provides a functional free plan tier for growing stores.
• Includes pre-built layout templates for fast setup.

Cons:

• No advanced discounting logic in the free plan.

Pricing:

• Free Plan: Free up to $500 monthly bundle sales.
• Essential Plan: $29/month (up to $3,000 monthly sales).
• Growth Plan: $49/month (up to $5,000 monthly sales).
• Scale Plan: $99/month (up to $10,000 monthly sales).
• (Paid tiers include a 15-day free trial)

3. Simple Bundles & Kits

Best for: Inventory-sensitive bundles, kits, and complex SKU structures.

Simple Bundles & Kits focuses on store fulfillment and stock tracking. Selling multi-item deals requires careful management of individual component quantities and order processing.

The app breaks down package orders into individual child SKUs in real time. It syncs data with 3PLs, WMS platforms, shipping tools, and retail hardware to keep stock counts accurate.

Key Features:

• SKU-level inventory syncing: Breaks down bundles into individual items for stock tracking.
• Dynamic bundles & kits: Powers multipacks, curated sets, and flexible BYOB experiences.
• POS & Headless support: Works across physical store registers and custom Hydrogen setups.
• Order processing rules: Routes multi-item sales efficiently to fulfillment centers.

Pros:

• Syncs stock automatically across external warehouses.
• Supports unlimited product options and variant choices.
• Suggests bundle configurations using store order history.
• Works directly with Shopify POS setups.
• Includes a functional free plan tier for small operations.

Cons:

• No free trial on paid plans.

Pricing:

• Free: Free (3 bundles, 50 orders/month).
• Basic: $14/month.
• Grow & Advanced: $39/month.
• Plus: $149/month.

4. FoxSell Bundle Builder

Best for: Complex bundle use cases and Build Your Own Box experiences.

FoxSell Bundle Builder handles advanced multi-product offers and custom packages. It suits merchants who need more than basic static packages.

The app supports custom box creation with infinite item variants. It syncs inventory levels across all package components automatically to streamline order processing.

Key Features:

• Build Your Own Box (BYOB): Multi-step box assembly with infinite product variants.
• Flexible Offer Types: Mixed product sets, quantity discounts, and fixed package deals.
• Automated Inventory Sync: Real-time component tracking across warehouses and Shopify POS registers.
• In-Depth Analytics: Built-in reporting metrics for every product package.

Pros:

• Handles infinite variant choices for complex product lines.
• Syncs package stock automatically to avoid overselling.
• Includes built-in add-on features and free gift incentives.
• Provides a generous free plan tier for early testing.
• Offers customizable layout templates for storefront design.

Cons:

• Full platform scaling requires upgrading to higher-paid tiers.

Pricing:

• Starter: Free to install (Up to $1,000 monthly bundle sales).
• Pro: $49/month (Up to $5,000 monthly sales).
• Scale: $149/month (Up to $15,000 monthly sales).
• Growth: $249/month (Up to $25,000 monthly sales).
• (14-day free trial available on paid tiers)

5. BOGOS: Free Gift Bundle Upsell

Best for: BOGO offers, mix-and-match bundles, free gifts, and broader promotional campaigns.

BOGOS links product bundling with promotional incentives. It works best when store owners use free items or gift rewards to drive bundle conversions.

The software runs Buy One Get One (BOGO) deals, custom box builders, and quantity savings. It uses progress bars, slide cart popups, and checkout upsells to motivate shoppers to hit spending thresholds.

Key Features:

• Promotional Bundling: Combines BOGO, Buy X Get Y, and gift rewards into item deals.
• Custom Box Builder: Lets shoppers pick specific items to build custom box packages.
• Smart Upsells: Displays gift progress bars and thank-you page recommendations.
• Inventory & POS Sync: Connects with physical store registers, custom apps, and stock systems.

Pros:

• Includes customizable progress bars to motivate cart additions.
• Offers automated gift-addition rules for checkout triggers.
• Supports upsell strategies across cart drawers and thank-you pages.
• Integrates smoothly with headless storefronts and retail hardware.
• Provides a risk-free Shopify bundle app free tier for early testing.

Cons:

• Free tier restricts usage to 30 lifetime orders.

Pricing:

• Free: Free (30 lifetime orders).
• Basic: $29.99/month (300 monthly orders).
• Grow: $49.99/month (600 monthly orders).
• Plus: $109.99/month (2,000 monthly orders).
• (Has a 7-day free trial on paid plans)

6. Bundler – Product Bundles App

Best for: Affordable general-purpose Shopify bundling.

Bundler – Product Bundles App provides budget-conscious stores with accessible tools to launch multi-item discounts. 

It builds mix-and-match packages, volume price drops, classic product pairings, and tiered discount structures. 

This app supports custom landing pages and dedicated bundle widgets that integrate directly with point-of-sale registers and subscription workflows.

Bundler is ideal for merchants seeking cost-effective bundle campaigns without strict sales caps. 

Key Features:

• Classic & Mix-and-Match Bundles: Groups complementary items or lets customers combine selected products.
• Volume & Tiered Discounts: Triggers percentage or fixed price drops as order counts rise.
• Custom Landing Pages: Creates targeted promotional pages and sectioned mix-and-match offers.
• POS & Subscription Support: Works directly with physical store registers and recurring billing apps.

Pros:

• Offers an unrestricted Shopify bundle app free tier.
• Ranks among the best free bundle apps for Shopify due to its low entry barrier.
• Generates standalone bundle landing pages for targeted promotional campaigns.
• Supports multiple languages, currencies, and subscription checkout options.
• Applies discount rules automatically without code modifications.

Cons:

• Dashboard controls and widget layouts could be simpler.

Pricing:

• FREE FOR EVERYONE: Free (Unlimited revenue and orders).
• Premium: $9.99/month.
• Executive: $19.99/month.
• (Paid tiers have a 7-day free trial.)

7. Pumper Bundles Quantity Breaks

Best for: Quantity breaks, volume offers, free gifts, and BOGO promotions.

Pumper Bundles Quantity Breaks focuses on quantity-based discount structures rather than complex box-building workflows. 

It helps store owners increase unit sales per order by placing automated pricing tables directly on product pages.

The app creates volume price drops, flat discounts, unit-based savings, and Buy X Get Y deals. It integrates directly with major cart drawer apps and page builders to ensure checkout conversion rates remain high.

Key Features:

• Quantity Breaks & Volume Discounts: Displays automated price-break tables based on unit thresholds.
• Free Gifts & BOGO Deals: Combines Buy X Get Y offers with automated free gift additions.
• Flexible Discount Calculations: Applies flat-rate, percentage, or per-unit savings automatically.
• Cart Drawer & Page Builder Support: Connects directly with PageFly, GemPages, and popular slide carts.

Pros:

• Provides a functional Shopify bundle app free tier for up to $300 in extra revenue.
• Drives higher average order values through clean volume discounts.
• Matches storefront branding through customizable widget controls.
• Works seamlessly with leading cart drawer and post-purchase upsell tools.
• Includes real-time analytics to track generated revenue and offer performance.

Cons:

• Offers limited layout styles for complex customer-selected box builders.

Pricing:

• Free: Free (Up to $300 in generated revenue).
• Starter: $9.99/month (Up to $1,000 extra revenue).
• Growth: $29.99/month (Up to $5,000 extra revenue).
• Unlimited: $49.99/month (Unlimited extra revenue).
• (Paid plans include a 7-day free trial.)

8. Kaching Bundles App & Upsells

Best for: Easy-to-create quantity-break and promotional bundles.

Kaching simplifies deal setup for store owners. You can create quantity breaks, BOGO deals, volume discounts, and free gifts without touching a code. 

Its built-in layouts match store styles quickly, and dashboard charts track extra sales in real time alongside A/B split tests. Smart options like these place Kaching among the best Shopify apps for custom product bundles. 

Key Features:

• Quantity Breaks & Volume Discounts: Displays automated price-break tables on product pages.
• BOGO & Gift Incentives: Triggers Buy X Get Y deals and automated free gift additions.
• Built-in A/B Testing: Tests offer variations to maximize storefront conversions.
• Revenue Analytics: Measures extra income directly within the primary dashboard.

Pros:

• Provides a simple no-code dashboard interface.
• Offers built-in A/B testing on paid plan tiers.
• Supports multiple currencies, languages, and AOV strategies.
• Connects smoothly with page builders and slide carts.
• Installs free for development store accounts.

Cons:

• Paid tiers enforce strict sales volume limits.

Pricing:

• Development Stores: Free to install.
• Starter Plan: $14.99/month (Up to $1,000 extra revenue).
• Scale Plan: $29.99/month (Up to $5,000 extra revenue).
• Pro Plan: $59.99/month (Up to $10,000 extra revenue).
• (7-day free trial available on paid plans.)

9. Unlimited Bundles & Discounts

Best for: Merchants who want several bundle formats at a relatively low price.

Unlimited Bundles & Discounts gives store owners access to versatile discount models without breaking the bank. 

The app supports standard product packages, volume price drops, mix-and-match sets, and Buy X Get Y deals. 

It stacks savings automatically at checkout and works seamlessly across physical store registers and global storefronts. 

This app works best for merchants who need simple promotional setups rather than intricate, multi-step box builders.

Key Features:

• Standard & Quantity Bundles: Packages distinct items or applies volume discounts on single products.
• Mix-and-Match & BOGO: Builds flexible product sets alongside Buy X Get Y deals.
• Automatic Combinable Discounts: Applies and stacks package savings automatically during checkout.
• POS & Multi-Market Support: Works across physical retail registers, multiple currencies, and localized store views.

Pros:

• Serves as a budget-friendly Shopify mix and match bundle app.
• Includes a functional free tier for up to $100 in monthly bundle sales.
• Applies discount rules automatically without code modifications.
• Supports flexible tiered pricing structures.
• Allows target customer segmentation based on purchase history.

Cons:

• The dashboard control panel uses a basic interface design.

Pricing:

• Free Plan: Free up to $100 monthly bundle revenue.
• Starter Plan: $9.99/month (Up to $1,000 monthly bundle sales).
• Growth Plan: $29.99/month (Up to $10,000 monthly bundle sales).
• Unlimited Plan: $49.99/month (Unlimited monthly bundle sales).
• (Paid tiers feature a 7-day free trial.)

10. Rapi Bundles & Upsell app

Best for: Beginners who want quick setup for common bundle promotions.

Rapi Bundles & Upsell app targets store owners who need fast package campaigns without complicated technical steps. 

This app lets you launch product combos, volume price drops, BOGO rewards, color-swatch packages, and post-purchase upsells in minutes.

It includes built-in A/B testing and progress bars that encourage shoppers to add extra items before checkout.

Key Features:

• Combo & Swatch Bundles: Groups complementary products with color option selectors.
• Quantity Breaks & BOGO: Sets tiered price drops and Buy One Get One FREE promotions.
• Cart Drawer Progress Bars: Displays visual spending goals to increase order totals.
• A/B Testing Controls: Tests offer variations to raise storefront conversion rates.

Pros:

• Offers quick setup templates requiring zero coding skills.
• Includes native A/B testing features directly inside the dashboard.
• Works smoothly alongside popular slide cart drawers.
• Supports gift additions and upsell triggers.
• Provides a free-to-install plan tier for starting stores.

Cons:

• Issues with the support.

Pricing:

• Forever free: Free to install (Up to $100 monthly generated revenue).
• Starter: $15/month (Up to $1,000 monthly revenue).
• Pro: $29/month (Up to $10,000 monthly revenue).
• Elite: $59/month (Unlimited revenue).
• (Paid tiers contain a 7-day free trial.)

Which Shopify Bundle App Is Best for Your Type of Custom Bundle?

Store owners must match software features to their specific bundle strategy. The following decision table helps you pick the right software fast without being baffled.

I want to…	Look for…	Recommended app
Create promotional product bundles	Bundles + discount rules	Echo Bundle
Let customers build their own box	BYOB / build-a-box	Easy Bundles
Manage complex inventory	SKU-level inventory syncing	Simple Bundles & Kits
Create a complex mix-and-match experience	Mix-and-match + bundle builder	FoxSell
Run BOGO and gift campaigns	BOGO + gifts	BOGOS
Create affordable bundles	Free/low-cost bundle features	Bundler
Offer quantity breaks	Quantity-break functionality	Pumper
Combine quantity breaks with analytics	Quantity breaks + A/B testing	Kaching
Offer multiple basic bundle types	Mix-and-match + BOGO + quantity	Unlimited Bundles
Set up simple bundle promotions quickly	Beginner-friendly bundle builder	Rapi

Shopify Bundle App vs Shopify Product Customizer App

Shopify bundle apps and product customizers serve completely different buyer intents. You can refrain from making wrong app choices if you know the core difference. Hence, let’s learn the differences.

Use a Bundle App When:

• Customers buy multiple separate products together.
• Customers select items to fill a custom box.
• You offer volume price drops or quantity breaks.
• You run Buy One Get One (BOGO) deals.
• You reward shoppers with free gifts.
• You combine complementary product collections into discounted sets.

Use a Product Customizer When:

• Customers personalize a single standalone item.
• Buyers add custom text engravings, names, or monograms.
• Shoppers upload personal images or design files.
• Customers select specialized extra options or custom materials.
• You need dynamic live preview fields for single-product customization.

Can a Shopify App Do Both?

Some advanced option apps include basic add-on capabilities or simple item pairings. 

However, they solve distinct problems. Product customizers enhance individual item details, while dedicated bundle software handles multi-SKU inventory tracking, cart-level discount logic, and tiered package pricing. 

A free Shopify product customizer app free tier rarely handles multi-product checkout rules effectively.

Are There Free Shopify Apps for Custom Product Bundles?

Yes, merchants can build package offers without upfront costs. The best free bundle app for Shopify depends on your budget model and monthly order volume.

Here are some budget models you need to know before using free Shopify apps.

• Completely Free: Completely free software charges zero subscription fees and zero commission rates.

• Free Plan: Permanent free plan options let store owners use basic features up to strict revenue or order limits.

• Free Trial: Paid plans offer temporary test periods where all premium features remain active for 7 to 15 days or more.

• Free to Install: Installation costs nothing initially, but usage fees or revenue share charges apply as sales grow.

App	Free option	Main limitation
Echo Bundle	Yes	$500 monthly revenue limit
Easy Bundles: Bundle Builder	Yes	Advanced custom builders require paid tiers
Simple Bundles & Kits	Yes	Limited to 3 bundles and 50 monthly orders
Bundler – Product Bundles App	Yes	Advanced custom branding requires upgrades
BOGOS: Free Gift Bundle Upsell	Yes	Restricted to 30 lifetime orders
Shopify Bundles	Completely free	Lacks dynamic rules and complex custom builders

Store owners seeking a reliable Shopify bundle app free tier often pick Echo Bundle for its high sales limit. 

A high monthly revenue cap lets you test the best Shopify apps for custom product bundles free tier before paying for upgrade plans.

How to Choose the Best Shopify App for Custom Product Bundles

Follow these six decision criteria to evaluate software options without falling for generic feature lists.

1. Decide Which Bundle Type You Need

First, clarify your sales model. Determine if your offer requires static packages, flexible mix-and-match sets, customer-built boxes, tier-based quantity drops, BOGO deals, or free gift rewards.

2. Check Customer Customization

Check how much control buyers get on product pages. Verify if shoppers can select specific items, customize variant options like size or color, adjust quantities, or add optional extras.

3. Check Inventory Handling

Review backend stock tracking capabilities carefully. Complex packages, kits, and multi-product sets need real-time SKU-level inventory syncing to prevent overselling across fulfillment locations and physical registers.

4. Check Discount Flexibility

Ensure the software supports your exact pricing structure. Look for flexible mechanics like flat-rate reductions, percentage price drops, tiered volume discounts, quantity breaks, BOGO triggers, and free gifts.

5. Check Storefront Customization

Match the offer widget to your store theme. Check whether you can adjust visual layouts, button styles, custom fonts, and color choices for desktop and mobile shoppers.

6. Check Free-Plan Limits

Evaluate non-paid tier restrictions before installing. Review monthly revenue caps, order count limits, total package allowances, hidden transaction fees, branding badges, and trial lengths.

Final Verdict

The best Shopify apps for custom product bundles make higher sales simple. Merchants pick different tools based on their specific goals. Complex box builders suit gift shops, while SKU tools help inventory management.

Store owners who want clear promotional growth should try Echo Bundle. It combines volume price drops, BOGO rewards, and free gift triggers into simple storefront widgets. The generous free plan lets you test every feature risk-free.

FAQs

What is the Best Shopify App for Custom Product Bundles?

The best choice depends on your strategy. Choose box-building tools for customer-selected kits, but pick Echo Bundle for high-converting promotional packages, quantity breaks, and free gifts. 

Can I Create a Build Your Own Box in Shopify?

Yes. A Shopify bundle builder lets customers pick individual items to assemble a personalized mix-and-match kit, unlike fixed bundles that restrict shoppers to pre-selected product sets. 

Is There a Free Shopify Bundle App?

Yes. Many tools offer non-paid plans, but Echo Bundle stands out as a top Shopify bundle app free option by providing generous monthly revenue limits.