Shopify app comparison
Pumper Bundles vs Rapi Bundles
Choose Pumper for focused quantity breaks, volume discounts, BOGO and free-gift offers on selected products. Choose Rapi when mix-and-match, build-your-own-box, post-purchase offers or A/B testing are central to the plan. Choose neither if Shopify Bundles can validate a simple fixed pack.
Pumper Bundles
You need focused quantity and volume offers with a lighter merchandising scope.
Setup: Light setup
Affiliate link. It never affects our advice.
Rapi Bundles
You need broader bundle formats and will actively test and maintain them.
Setup: Light setup
Official vendor website.Neither yet?
A simple fixed bundle in Shopify can test the offer without another paid app.
See the simpler starting point →The differences that matter
Swipe the table to see both apps →
| What to check | Pumper Bundles | Rapi Bundles |
|---|---|---|
| Core fit | Quantity breaks, volume discounts, BOGO and free gifts. | Mix-and-match, build-your-own-box, quantity and post-purchase offers. |
| Experimentation | Focused attributed-revenue reporting. | A/B testing is more central to the proposition. |
| Operational burden | Lighter when used on selected products. | More offer types require more merchandising and QA. |
| Pricing model | Plans scale with generated revenue. | Plans also scale with generated revenue and feature tier. |
Choose Pumper when:
- Quantity breaks are the primary job.
- You want a focused offer on selected products.
- A lighter configuration is preferable.
Choose Rapi when:
- Customers need mix-and-match or build-your-own-box.
- A/B testing is part of the operating plan.
- A person responsible will manage a broader offer set.
What will you actually pay?
Pumper Bundles
Free up to USD 300 app revenuePaid allowances scale with revenue generated through the app. Check the current revenue thresholds and how the vendor measures them.
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
A simple fixed bundle in Shopify can test the offer without another paid app.
- Shopify’s free fixed-bundle option already creates the offer you need.
- You have not checked how discounts and stock should behave.
- You have not tested every bundle quantity from product page to refund.
- You plan to count every app-attributed sale as extra profit without comparing it with normal sales.
Ready to set it up?
Start with one useful feature and test the customer journey before switching on more.
Set up Pumper Bundles
Prove one quantity ladder with Pumper.
- Choose one product.
- Model margin by tier.
- Build the widget.
- Test cart and discounts.
- Review net contribution.
Set up Rapi Bundles
Use Rapi for one broader bundle hypothesis.
- Choose one bundle format.
- Define control and target.
- Configure products and inventory.
- Test subscription, cart and checkout.
- Keep only a proven winner.
Checks that apply to either app
- All quantity and discount combinations calculate correctly.
- Inventory and fulfilment receive usable component information.
- Mobile presentation and accessibility are checked.
- The next pricing tier is included in the profit model.
Common questions
Is Pumper or Rapi better for quantity breaks?
Pumper is the more focused quantity-break choice. Rapi is worth comparing when you also need broader bundle formats or testing.
Which is better for build-your-own-box?
Rapi is the more relevant option of the two because it includes mix-and-match and build-your-own-box positioning.
How should I compare the cost?
Model the plan at expected app-generated revenue, then subtract discounts, fulfilment and returns from the measured uplift.
How should I test Pumper against Rapi Bundles before committing?
Choose one real customer journey and one measurable outcome. Complete the same checks for both options, including all quantity and discount combinations calculate correctly. and inventory and fulfilment receive usable component information., then compare the result and the work your team had to do.
What should I measure after choosing Pumper 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.
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