Best Shopify Bundle Apps for Custom Bundles (2026)

Custom bundles are one of the most effective ways to increase average order value on Shopify. But there’s a big difference between letting customers pick their own products and just grouping a few items together with a discount. The right app gives you the flexibility to do both while keeping inventory accurate and the shopping experience smooth.

This guide covers the best Shopify apps for custom bundles in 2026. Whether you want a mix-and-match builder, a build-your-own-box experience, or a bundle tied to a promotional offer, there’s an option here that fits your store.

Let’s check them out!

TL;DR — Best Shopify Bundle Apps for Custom Bundles at a Glance

What Makes a Good Custom Bundle App?

Not every bundle app is built for true customization. Before diving into the list, here are four things worth checking before you install anything:

• Bundle type flexibility — The app should support mix-and-match, build-a-box, and variant-level bundles, not just fixed product sets
• Customer-side customization — Shoppers can select what goes into their bundle, within the rules you set as a merchant
• Pricing control — Look for options like flat discounts, percentage off, tiered pricing, or custom prices per combination
• Inventory sync — When bundles are sold by variant, the app should update stock in real time to prevent overselling

With those criteria in mind, here are the best Shopify apps for custom bundles in 2026.

👉 Read more: 10 real-life examples of custom bundles: How Shopify brands are using them

Top 5 Shopify Apps for Custom Bundles (2026)

Here’s a closer look at each app—what it does well, where it falls short, and who it’s best suited for.

1. BOGOS.io — Best for promotion-driven custom bundles

BOGOS is one of the most versatile promotion apps on Shopify, covering free gifts, BOGO, Buy X Get Y, volume discounts, and custom bundles from a single dashboard. It works across all Shopify plan tiers and supports POS, headless storefronts, and Shopify Plus with checkout upsell access.

On the custom bundle side, BOGOS goes beyond simple product grouping. It lets customers build their own bundle through an interactive step-by-step flow, with quantity and variant selection at each step. Merchants can layer bundle offers with targeting rules, free gift triggers, and upsells—all without needing separate apps for each piece.

Key features

• Mix-and-match widget: Merchant defines product groups and slots; customers pick one item per slot, and the discount applies automatically, with variant-level selection supported
• Bundle Builder (build-a-box): A dedicated page with a step-by-step selection flow, letting customers choose products, variants, and quantities per item, with a real-time sidebar showing bundle progress
• Quantity controls: Set minimum and maximum quantities for each item within the bundle to guide the selection flow and protect margins
• Tiered discounts with progress bar: Unlimited discount tiers that scale with quantity, including a progress bar to encourage customers to add more — supports percentage off, fixed amount, fixed price, free shipping, and discount on the cheapest item
• Widget placement and customization: Embeds on product pages, homepage, cart, and checkout, with full control over fonts, colors, button text, and layout, plus Custom CSS/JS and 150+ language auto-translation
• Targeting and conditions: Apply offers by collection, product type, vendor, or variant; set start and end dates for time-limited campaigns; inventory syncs automatically at the variant level

Limitations

The extensive feature set can make the backend feel overwhelming for new users who only need a simple bundle or gift setup. Expect a steeper learning curve compared to single-purpose apps

Verdict

Unlike Fast Bundle or Koala, BOGOS combines bundle creation with a full promotion engine, so you’re not just offering discounts but building conditional offers with targeting rules across cart value, customer tags, and product collections.

The mix-and-match feature is available on the free plan, unlike either Fast Bundle or Koala, which don’t offer it for live stores. If bundling is one part of a larger promotion strategy that includes BXGY, free gifts, or upsells, BOGOS is the most consolidated option in this list.

2. FBP | Fast Bundle — Best for all-in-one bundle flexibility

Ratings & Reviews

Shopify App Store: 5.0⭐ (2,410+ reviews)

Pricing

From $19/mo — 7-day free trial. No free plan for live stores

Fast Bundle is a dedicated bundle app covering seven bundle types and positions itself as an all-in-one solution for merchants who want to handle every bundle format within a single app. The pricing model is simple — all features are available from the first paid plan, with tiers based only on monthly bundle sales volume.

Fast Bundle best features

• Mix-and-match structure: Supports a standard product pool format and a sectioned format where customers pick from multiple defined groups in sequence (e.g., pick two from Group A and one from Group B). Each section has its own required item count
• Bundle Builder pop-up: A pop-up display mode for mix-and-match bundles with a progress bar and real-time totals. Works for tiered and single discount structures. Requires a specific product list — does not work with full collections
• Tiered discount with item ranges: Set discount tiers with minimum and maximum item ranges (e.g., 2–5 items = 30% off). Customers who exceed the max still receive the last tier’s discount
• Bundle as Product (BAP): Bundles are published as standalone Shopify product pages with their own URL, image, and collection placement — fully shoppable like a regular product
• Widget customization: Full control over background, borders, button colors, font, font size, and variant selector styling. Custom CSS and JS supported. Variant options can display as color swatches instead of dropdowns

Other features

• AI-powered Frequently Bought Together using actual purchase behavior
• AI Bundle Image Generator — auto-creates product images for bundles
• hopify POS support on all paid plans

Limitations

• No free plan for live stores; the mix-and-match bundle builder pop-up requires a manually defined product list and does not support pulling from full collections, which limits automation for large catalogs
• Some merchants report a confusing initial setup process, especially around BOGO and pricing rule configuration; the UI can feel unintuitive when managing more complex discount structures

Verdict

Covers more bundle types than any other app here, including gift boxes and wholesale bundles. Feature access is identical across all paid plans, so you get everything from $19/mo without worrying about gated features. The only real downside is the revenue-capped pricing model. Stores doing high bundle volume will pay more here than they would with BOGOS or Bundler for comparable functionality.

3. Koala Bundles — Best for quantity breaks and post-purchase upsells

Ratings & Reviews

Shopify App Store: 4.9⭐ (680+ reviews)

Pricing

From $12.99/mo — 14-day free trial. No free plan for live stores. Lower tiers are capped by bundle revenue ($1K/mo and $5K/mo), so fast-growing stores may need to upgrade sooner than expected.

Koala Bundles is built around quantity breaks and volume discounts, with mix-and-match bundles as a supporting feature rather than the main draw. The native countdown timer and announcement bar are included on all paid plans, which makes it easier to create urgency around bundle deals without installing a separate app. The one-click post-purchase upsell is a genuine differentiator here, as most bundle apps in this list don’t offer it natively.

Key features

• Quantity breaks: Tiered pricing based on units purchased. Supports percentage, flat, and bulk discount types at both product and cart levels. Tiers update automatically as customers increase quantity
• Multi-product mix-and-match: Customers combine products from a defined pool and receive volume pricing. Mechanics are less granular than Fast Bundle — no sectioned structure or per-slot item limits
• Post-purchase one-click upsell: A single offer presented after payment is complete. Customer accepts with one click and no re-entry of payment details. Integrates natively with Shopify checkout
• Countdown timer and announcement bar: Both built into the app on all paid plans. Timer displays days, hours, minutes, and seconds. No third-party app required
• Targeting and rules: Supports trigger conditions, filtering, and bulk editing. Collection-level targeting has known limitations: offers must be configured per product rather than applied across an entire collection

Other features

• Cart volume discounts applied at checkout
• Ready-to-deploy bundle themes with drag-and-drop customization
• GemPages and PageFly integration
• 24/7 live chat support

Limitations

• Lower-tier plans are capped by bundle revenue ($1K/mo and $5K/mo), so fast-growing stores may need to upgrade sooner than expected. Unlike fixed-price apps, costs can be hard to predict month to month
• Some merchants have reported inventory sync issues where products are incorrectly tagged as sold out despite having available stock — a potentially costly bug if not caught early

Verdict

The built-in countdown timer and post-purchase upsell give it a feature set that Bundler and Simple Bundles cannot match without third-party apps. It’s a practical choice when quantity breaks are your primary AOV strategy.

That said, if you need mix-and-match bundles with more granular targeting, BOGOS handles that better at a similar price point, and the known gap in collection-level targeting is worth factoring in before you commit.

4. Simple Bundles & Kits — Best for inventory-conscious brands

Ratings & Reviews

Shopify App Store: 4.9⭐ (690+ reviews)

Pricing

Free (3 bundles, 50 orders/mo)/ $14/mo (Basic)/ $39/mo (Grow & Advanced)/ $149/mo (Plus). Pricing scales with your Shopify plan tier.

Simple Bundles is built specifically for merchants who need bundles to work accurately at the fulfillment level. Rather than creating a custom front-end widget, it works through Shopify’s native variant system and automatically breaks every bundle order into individual component SKUs for 3PL, WMS, and ERP systems. It’s the only app in this list purpose-built around inventory and fulfillment accuracy rather than storefront conversion.

Key features

• Automatic SKU breakdown: Every bundle order is split into component SKUs at the point of fulfillment. Your 3PL, WMS, or ERP receives individual line items, not a bundle parent SKU. Then, warehouse staff can pick normally without custom workarounds
• Mix-and-match via native Shopify UI: Merchant creates a Shopify product with variant options mapped to component SKUs. Each variant combination corresponds to a specific product mix. No custom widget. Customers interact through standard Shopify variant selectors
• Infinite Options bundle type: Bypasses Shopify’s 2,048 variant limit. Supports unlimited configuration combinations without creating actual Shopify product variants
• Bundle types: The most comprehensive list in this roundup — fixed, mix-and-match, build-a-box, gift boxes, mystery boxes, sample packs, multipacks, subscription boxes, and wholesale bundles
• AI bundle suggestions: Available on all plans, including free. Analyzes order history to surface which products customers commonly buy together

Other features

• ShipStation, Amazon MCF, and Shopify Flow integration
• POS support (single location on Basic; multi-location on Grow+)
• B2B and wholesale multipack support
• Headless and Hydrogen support on Plus plan

Limitations

• The app focuses on backend logic and fulfillment, not frontend styling; achieving polished bundle layouts typically requires developer support; it’s not a plug-and-play storefront tool
• Subscription bundles require workarounds due to Shopify platform constraints, and some merchants have reported year-end inventory count discrepancies that required manual recounting

Verdict

No other app in this list automatically breaks bundle orders into individual SKUs for 3PL and WMS fulfillment. That one feature alone makes it the obvious choice for brands where picking accuracy and inventory sync are non-negotiable.

Pricing is tied to your Shopify plan tier, which could mean you end up paying more than you would with BOGOS or Fast Bundle for a similar bundle-building experience if you don’t need fulfillment-level accuracy.

5. Bundler — Best free option for custom bundles

Ratings & Reviews

Shopify App Store: 4.9⭐ (2,080+ reviews)

Pricing

Free (unlimited orders)/ $9.99/mo (Premium)/ $19.99/mo (Executive, includes analytics).

Bundler supports a wide range of bundle types and offers one of the most flexible free plans in this category: unlimited orders and revenue, with no dev-store restrictions. The app supports 18+ languages, making it a practical option for stores selling across multiple markets. Its mix-and-match feature includes three distinct formats, one of which lets merchants structure bundles by product category—unlike most other apps here.

Key features

• Classic mix-and-match — Customers pick any combination from a defined product pool. Merchant sets minimum and maximum item counts, per-product quantity limits, and required products
• Sectioned mix-and-match — The product pool is divided into named sections with individual min and max quantities per section. Customers must fulfill requirements in each section before completing the bundle
• Tiered mix-and-match — Escalating discounts tied to quantity thresholds. Customers can see what they qualify for and what they need to add to reach the next tier
• Bundle landing pages — Auto-generated dedicated page per bundle, fully customizable. Also includes a bundles listing page showing all active bundles, and quick checkout links that load the bundle directly into checkout
• Widget placement — Embeds on product pages, popups, and external pages via shortcodes. Supports JavaScript API for custom integrations

Other features

• Customer tag restriction: limit bundle discounts to specific customer segments, like VIP or wholesale
• Bundle scheduling with exact start and end date/time
• Seal Subscriptions integration shown inside the bundle widget
• Shopify POS support on all plans
• 18+ language support including Arabic, Japanese, and Chinese

limitations

• Limited advanced visual customization for bundle widgets. Merchants who need highly branded or custom-designed bundle displays may find the styling options too basic compared to BOGOS or Fast Bundle
• Some users have reported technical issues, including cart duplication, broken popups, and bundles not displaying correctly, particularly on custom or heavily modified themes

Verdict

The free plan is genuinely the strongest in this list: unlimited orders, no revenue cap, and Shopify POS included. The gap becomes clear when you need mix-and-match, post-purchase upsells, or analytics — all locked behind paid tiers where BOGOS and Fast Bundle are more capable at comparable price points. A good entry point, but likely not a long-term fit as your promotion strategy matures.

👉 For more bundle app reviews, including free and paid options, this guide gives you an overview of the 8 best Shopify bundle apps on the app store.

How to Choose the Right App for Your Store

The apps on this list each do something particularly well, so the decision really comes down to your priorities.

If bundling is part of a larger promotion strategy that includes free gifts or BXGY, go with BOGOS. It handles all of that in one place, rather than requiring separate apps for each offer type.

If your store fulfills through a 3PL or WMS, Simple Bundles is the only option here that automatically breaks orders into individual SKUs. Every other app sends the bundle as one line item, which creates extra manual work downstream.

If you want the most bundle types with no feature gating from day one, Fast Bundle covers that well. Just keep in mind that the revenue-capped pricing can get expensive as your bundle sales scale.

If quantity breaks are your main AOV strategy and you want urgency tools built in, Koala Bundles includes a native countdown timer and a post-purchase upsell without needing extra apps.

If you’re still testing whether bundles work for your store, start with Bundler. The free plan covers fixed bundles and volume discounts with no order cap, so the risk is low.

Conclusion

The apps on this list each do something particularly well, so the decision really comes down to your priorities. Take the free trials seriously. Most of what you need to know will show up within the first week of testing.

FAQs