Shopify app comparison
Fast Bundle vs Rapi Bundles
Choose Fast Bundle when Growth stores needing several bundle types. Choose Rapi Bundles when you need mix-and-match or build-your-own-box offers. Choose neither if your current setup already does enough or the expected improvement would not justify the extra cost and work.
Fast Bundle
Growth stores needing several bundle types. Use Fast Bundle when Shopify’s native bundles are too limited but the store still needs a merchant-friendly bundle app.
Setup: Heavier setup
Affiliate link. It never affects our advice.
Rapi Bundles
You need mix-and-match or build-your-own-box offers. A broader bundle and upsell builder for stores that want mix-and-match, quantity and post-purchase experiments in one app.
Setup: Light setup
Official vendor website.Neither yet?
Wait if the bundles problem is still occasional, your current setup already handles it or your team does not have time to use either app well.
See the simpler starting point →The differences that matter
Swipe the table to see both apps →
| What to check | Fast Bundle | Rapi Bundles |
|---|---|---|
| What you get | Fixed and mix-and-match bundles, Bundle inventory handling, Bundle discount logic | Mix-and-match and build-your-own-box bundles, Quantity breaks and BOGO offers, Post-purchase upsells |
| Important limitation | Complex catalogue and fulfilment setups still require careful testing. | Revenue-tier pricing can rise with attributed performance. |
Fast Bundle is the stronger fit when:
- Growth stores needing several bundle types
- Teams without developer resource
- It is a strong growth-stage candidate for volume discounts, mix-and-match offers and more flexible merchandising without enterprise implementation.
Rapi Bundles is the stronger fit when:
- You need mix-and-match or build-your-own-box offers
- You want A/B testing across bundle formats
- You have an owner for offer maintenance and analysis
What will you actually pay?
Fast Bundle
From USD 19/monthFree is for development stores only. Live-store plans are $19, $49 and $139/month for up to $1,000, $3,000 and $10,000 monthly bundle sales respectively. Higher usage needs a higher tier.
Pricing checked 2026-09-07Check official pricing ↗Rapi Bundles
Free up to USD 100 app revenue/monthNow listed as Rapid Bundles & Upsell. Monthly plans scale with app-generated revenue; annual discounts require an annual commitment.
Pricing checked 2026-09-07Check official pricing ↗You might not need either yet
Wait if the bundles problem is still occasional, your current setup already handles it or your team does not have time to use either app well.
- Highly customised ERP-dependent bundle inventory
- You only need a simple fixed multipack
- The problem is still occasional, your current setup already handles it or neither app would create enough value to justify the extra cost and work.
Ready to set it up?
Start with one useful feature and test the customer journey before switching on more.
Set up Fast Bundle
Use Fast Bundle for a controlled first use case and expand only after the result is proven.
- Define the bundle decision case and commercial guardrails
- Select the plan from expected bundle revenue, not store GMV
- Build the minimum controlled set of bundle offers
- Choose the Bundle as a Product architecture before creating SKUs
Set up Rapi Bundles
Use Rapi Bundles for a controlled first use case and expand only after the result is proven.
- Choose the commercial job
- Configure the bundle
- Create the measurement split
- Run storefront QA
Checks that apply to either app
- The complete customer and operational journey works on mobile and desktop.
- Required Shopify data and integrations update once and in the intended place.
- A person responsible can resolve common failures without unsafe access or manual workarounds.
- The measured value is compared with software cost, team time and new support demand.
Common questions
Is Fast Bundle better than Rapi Bundles?
Not automatically. Fast Bundle is the better fit when growth stores needing several bundle types. Rapi Bundles is the better fit when you need mix-and-match or build-your-own-box offers.
Which is easier to set up: Fast Bundle or Rapi Bundles?
Fast Bundle is currently classed as heavier setup, while Rapi Bundles is light setup. The real effort depends on your data, integrations, theme and the number of workflows you enable.
How should I test Fast Bundle against Rapi Bundles before committing?
Choose one real customer journey and one measurable outcome. Complete the same checks for both options, including the complete customer and operational journey works on mobile and desktop. and required shopify data and integrations update once and in the intended place., then compare the result and the work your team had to do.
What should I measure after choosing Fast Bundle or Rapi Bundles?
Record the current result before launch, then measure the customer outcome the app is meant to improve alongside app cost, support demand, errors and the time required to run it. Keep the app only when the total value is clear.
Can I switch between Fast Bundle and Rapi Bundles later?
Usually, but switching can affect settings, customer data, theme placements, integrations and reporting. Export what you can, document the current setup and test the replacement before removing the original app.
Still comparing?
All bundles options →Sources and independence
Based on official app listings and vendor documentation, not a claim of hands-on testing of every feature. Affiliate relationships do not decide which app we recommend.
Read our methodology