ConvertBoost vs Rapi Bundles: Flat-Rate Architecture & Limits Review
Compare ConvertBoost and Rapi Bundles for Shopify tiered quantity breaks: flat-rate pricing, Theme App Extension architecture, and checkout limits.
Quick Verdict (TL;DR) ConvertBoost is a flat $9.99/month Shopify app offering Tiered Bundle Quantity Breaks and Side-by-Side Comparison Cards via native Theme App Extension blocks, with 0% GMV revenue cut. Rapi Bundles is a separate third-party bundle app; verify its current pricing, feature set, and checkout behavior directly before deciding, since this page does not assert unverified claims about it.
Choosing a bundle app usually starts with a feature checklist and ends with a surprise: a revenue-share cut that scales with your success, a heavy JavaScript runtime that slows product pages, or quantity selectors that fight the native Shopify product form instead of updating it. The hidden cost is rarely the sticker price. It shows up as slower pages, broken variant and quantity state at add-to-cart, and discount behavior at checkout that you only discover after launch. Before comparing any two apps, you need to know which platform rules govern them: Theme App Extensions determine how blocks render inside Online Store 2.0 themes, and Shopify's discount combination rules determine whether your tiered pricing actually applies at checkout.
What to check first
Check how the bundle block integrates with Shopify Online Store 2.0 Theme App Extensions, whether quantity selection updates the native product form variant/quantity inputs cleanly, and how automatic discounts or price tiers behave in Shopify Checkout. Compare Rapi Bundles workflows against ConvertBoost using verifiable public platform rules and transparent pricing boundaries.
Side-by-side comparison
| Dimension | Status quo / legacy bundle apps | ConvertBoost |
|---|---|---|
| Pricing model | Often tiered plans or revenue share; verify per app | Flat $9.99/month, 0% GMV cut |
| Storefront integration | Varies; some rely on external runtime frameworks | Native Liquid, CSS, lightweight JS Theme App Extension blocks |
| Quantity sync | May bypass the native product form | Selected bundle quantities synchronized with the native Shopify product form |
| Comparison cards | Often a separate app or custom build | Side-by-side Comparison Cards included as product page blocks |
| Discount behavior | Depends on app logic and Shopify checkout rules | Tiers rely on Shopify discount mechanics; verify combination rules in checkout |
| Theme compatibility | Varies by theme and app | Built for Online Store 2.0 Theme App Extensions |
Note: Rapi Bundles column entries are intentionally omitted where public, verifiable facts were not supplied. Confirm its pricing and checkout behavior on its own listing before comparing.
How to work through it
- Confirm your theme supports Online Store 2.0 Theme App Extensions, since ConvertBoost blocks are delivered that way. If your theme is legacy, plan an upgrade or a manual block placement.
- Install ConvertBoost and add the Tiered Bundle Quantity Breaks block to a product template in the theme editor. Add the Side-by-Side Comparison Cards block where relevant.
- Test quantity selection on a staging product: choose a bundle tier, then confirm the native product form's variant and quantity inputs reflect the selection before add-to-cart.
- Configure your tiered pricing as Shopify discounts, then review Shopify's discount combination rules to confirm how your tiers interact with other automatic or code discounts at checkout.
- Run a full checkout test for each tier, including a mixed cart, and record actual prices charged.
- Repeat the same test flow in Rapi Bundles on a duplicate theme so you compare like for like: page weight, quantity sync, and checkout pricing.
- Compare total monthly cost at your expected order volume, including any revenue share, against ConvertBoost's flat $9.99/month.
- Decide based on verified checkout behavior and total cost, not feature lists alone.
Where the product fits
ConvertBoost fits merchants on Online Store 2.0 themes who want tiered quantity breaks and comparison cards as native blocks, with predictable flat-rate pricing and no GMV cut. It is not a fit if you need features outside those two block types, run a legacy non-OS 2.0 theme without adjustment, or require discount stacking behavior that Shopify checkout does not support. ConvertBoost does not guarantee average order value outcomes, and automatic discount stacking must be verified in your own checkout.
Next step
Review ConvertBoost's flat $9.99/month plan and block setup at https://convertboost.getsearivo.com before you commit.
Frequently asked questions
Does ConvertBoost take a revenue share?
No. ConvertBoost uses a flat $9.99/month subscription with a 0% GMV revenue cut. Confirm current terms on the pricing page before purchase.
Will bundle quantities update the native Shopify product form?
ConvertBoost synchronizes selected bundle quantities with the native Shopify product form. Test this on a staging product in your own theme before launch.
Do tiered prices stack with other discounts at checkout?
Tier pricing depends on Shopify discount mechanics. Review Shopify's discount combination rules and run a checkout test; ConvertBoost does not guarantee automatic stacking.