One Click Upsell vs. Rebuy: which Shopify upsell app is better in 2026?
Both apps cover the full funnel. One is a single app that charges only when it earns. The other is a personalization platform that requires multiple add-ons — and bills on order volume.
Pricing calculator
Compare your monthly cost
- One Click Upsell
- $28/mo
- Rebuy
- $99/mo
OCU charges for upsell revenue only. Rebuy charges for number of orders, so your bill can go up even if revenue doesn’t.
- Upsell revenue
- $1B+
- Shopify brands
- 50,000+
- App for the full funnel
- Only 1
The upsell engine behind the fastest-growing Shopify brands
Feature comparison
How Rebuy and Zipify One Click Upsell compare
This table compares the dimensions that decide your return: funnel coverage, what each package costs, split testing, customization, and thank-you page monetization.
| Feature | One Click Upsell | Rebuy |
|---|---|---|
| Funnel coverage | All upsell types in 1 app — product page, pre-purchase pop-ups, cart drawer, cart, checkout, post-purchase, thank you page | Split across four packages — cart and merchandising, checkout and post-purchase, search and collections, flows and A/B testing |
| Upsell placements | ||
| Product page upsell | Yes: Included | Yes: Included |
| Pre-purchase offer pop-ups | Yes: Included | Yes: Included |
| Cart drawer (built in) | Yes: Included — no extra fee | No: No — requires Cart & Merchandising, a separate $45/mo subscription |
| Cart upsell | Yes: Included | No: No — requires Cart & Merchandising, a separate $45/mo subscription |
| Checkout upsell (Plus) | Yes: Included — no extra fee | Yes: Included |
| One-click post-purchase upsell | Yes: Included | Yes: Included |
| Post-purchase downsell | Yes: Included | Yes: Included |
| Thank you page upsell | Yes: Included | Yes: Included |
| Thank you page monetization | Yes: Included | Yes: Included |
| Optimization & analytics | ||
| AI product recommendations | Yes: Included | Yes: Included |
| Split testing | Yes: Included | No: No — requires Flows & A/B Testing, a separate $35/mo subscription |
| Advanced personalization | Partial — trigger-based rules for upsell offers | Yes: Included — Data Sources and IF/THEN logic across the whole site |
| Optimization suggestions | Yes: Included — from the OCU data-driven AI Assistant | No: No |
| Funnel performance reporting | Yes: Included | No: No |
| Automation flows | No: No | No: No — requires Smart Flows, a separate $35/mo subscription |
| Customization | ||
| Custom CSS | Yes: Included | Yes: Included |
| Custom HTML | Yes: Included | Yes: Included |
| Progress bar | Coming soon — September 2026 | Yes: Included |
| Platform & pricing | ||
| Shopify Plus Certified | Yes: Yes | Yes: Yes |
| Shopify Sidekick Integration | Yes: Yes | No: No |
| Built by | Proven 9-figure Shopify merchants | App developer |
| How pricing works | Based on upsell revenue generated — you only pay more if the app earns you more | Flat package fees plus a per-order usage charge on every order you receive |
Information accurate as of publicly available product documentation and rebuyengine.com/pricing, August 2026. Subject to change.
Pricing model: Rebuy vs. One Click Upsell
Rebuy is priced on order volume. OCU is priced on upsell revenue.
One Click Upsell has one plan, and its price is set only by the upsell revenue it generates — from $9.95 to a $999 cap. A month with 10,000 orders and $0 in upsell revenue still costs just $9.95, and OCU never takes a cut of your store’s total sales. Rebuy charges a flat package fee based on your average monthly orders plus a per-order fee on top, with a 500-order minimum — so every order raises your bill, whether or not an upsell converted.
Verified 5-star Shopify App Store reviews
Which upsell app do merchants choose after testing several?
Merchants who evaluate multiple Shopify upsell apps consistently return to Zipify OCU — in several cases after switching away and coming back. The verified App Store reviews below reach the same conclusion as this comparison: OCU’s all-in-one funnel and honest revenue reporting outperform the alternatives.
Rated 5 out of 5
We had moved off OCU a little over a year ago due to some limitations with offer set up and integrations. Since then, they have surged past competitors with an all-in-one app. This cut down on our funnel set up and evaluation time, as we can see results from one dashboard instead of 2 or 3 apps. I also appreciate the honest reporting, showing you AOV with and without OCU upsells over time, vs other apps that take credit for sales you’d have anyway.
Rated 5 out of 5
So I’ve been on Shopify for like a decade now. Fresh Chile. And we switched over to this app maybe six months ago from a different upsell app we’d been running. Six months. And we’ve already pushed over $238,000 through it. That right there should tell you something. Everybody wants AOV. And yeah, we get it. $53 with our upsells, $45 without. That’s a real lift. That pays for the app and then some, every single day. But you wanna know the thing that actually moved the needle for us? We took our free recipe cookbook. The free one. And we dropped it right into the post purchase. Low ticket. Sometimes it’s literally free. And people are like Chris what are you doing, that’s not gonna spike your AOV. You’re right. It’s not. Here’s what it does. It gets the chile into their kitchen. It gets them cooking. It gets them into our community. And that, baby, that is what brings them back. We’re sitting at a 40 to 50% repeat purchase rate. Half our customers come back. And this little cookbook upsell is a big reason why. And the dashboard shows you AOV with upsells and without, side by side, right there. No guessing. We came over from another app and I’m not looking back. Setup took me minutes. No code. And their team actually goes in and optimizes the funnels with us. So look, if you’re only thinking AOV you’re leaving money on the table. Five stars, easy.
Rated 5 out of 5
One Click Upsell (OCU) is a game-changer for Shopify stores looking to boost Average Order Value (AOV). By showing targeted offers after checkout but before the thank-you page, customers can buy more with a single click—no re-entering payment info.
Pros: Instant revenue lift, zero friction for the buyer, and great built-in A/B testing.
Cons: The tiered pricing structure makes it a bit pricey for brand-new stores with low sales volume.
Bottom line: If you have steady traffic, this app easily pays for itself. Highly recommended.
A fair assessment
What does Rebuy do well?
A lot. Rebuy is a capable platform, and its Smart Cart is genuinely good — tiered reward progress bars, gift with purchase, buy-more-save-more, subscription switching, and 40+ app integrations. It also does things OCU doesn’t do at all: site search, collections, sitewide merchandising widgets, automation flows, and landing pages. Its drag-and-drop editor and multi-language support cover every placement it sells, where OCU’s cover post-purchase upsells today.
The honest framing is that Rebuy is a personalization platform and One Click Upsell is an upsell app, and the two are priced accordingly.
How Rebuy charges
Rebuy sells the funnel in four packages
Nothing in Rebuy is locked behind a plan tier — it’s split across packages you buy separately. Cart drawer, post-purchase offers, and split testing each live in a different package, and every package carries a flat fee plus a per-order usage charge on your total order volume. Its billing FAQ confirms in-person and POS orders count too. OCU only charges on upsell revenue.
| Rebuy’s four packages | One Click Upsell | Rebuy |
|---|---|---|
| Cart drawer & in-cart offers | Yes: Included | Cart & Merchandising — $45+/mo |
| Post-purchase & in-checkout offers | Yes: Included | Checkout & Post-Purchase — $25+/mo |
| Split testing your offers | Yes: Included | Flows & A/B Testing — $35+/mo |
| Site search & collections | Not offered — OCU is an upsell app | Search & Collections — add $35+/mo not counted in the subtotal below |
| Subtotal at 500 orders/mo | From $9.95/mo, set by upsell revenue | $104+/mo and it climbs with every order |
How do the two pricing models compare? Compare the models →
Package fees per rebuyengine.com/pricing, August 2026. Rebuy’s subtotal is the cart, checkout, and flows packages at Rebuy’s 500-order pricing floor; annual billing takes 10% off. Search & Collections is not included in the subtotal.
Thank you page monetization
Zipify PostProfit vs. Rebuy Monetize
Mechanically the two are close: brand-safe ads on the order status page for US and Canadian customers with ad revenue paid out via PayPal. The difference is what the income has to cover. PostProfit revenue lands against a single OCU subscription, so at higher order volumes it can cover your bill entirely. Rebuy stacks package fees and per-order usage charges, so the same ad revenue has much further to go.
Funnel coverage
Full funnel in one app — or four packages priced separately
OCU covers the whole journey in one install — product page → slide cart → pre-purchase → in-checkout → post-purchase → thank-you → PostProfit. Rebuy covers most of the same ground, but splits it across packages you buy one at a time — and its checkout offers require Shopify Plus.
- Upsell revenue by OCU merchants
in 2025 (+25% YoY) - $254M
- Of OCU upsell revenue from
pre-purchase & in-cart offers - 28.9%
OCU cart drawer
OCU’s cart drawer is built in and free
Rebuy’s Smart Cart is a strong piece of software — tiered progress bars, gift with purchase, buy-more-save-more, subscription switching, 40+ integrations. It also sits behind the Cart & Merchandising package at $45/mo before usage. OCU’s Slide Cart Drawer ships free with relevant add-ons and a free-shipping reward bar, worth up to a 20% AOV increase.
- AOV increase from the Slide
Cart Drawer - +20%
- AOV lift Gussy’s Gut saw in 30 days
- +16.47%
Cart display 9 features
| Feature | OCU Slide Cart | Rebuy Smart Cart |
|---|---|---|
| Cart drawer | Yes: Yes | Yes: Yes |
| Announcements | Yes: Yes | Yes: Yes |
| Promotions & countdown timers | Yes: Yes | Yes: Yes |
| Discount fields | Yes: Yes | Yes: Yes |
| Shipping estimator | Yes: Yes | No: No |
| Custom styles, rules & CSS | Yes: Yes | Yes: Yes |
| Sticky cart | No: No | Yes: Yes |
| Terms checkbox | No: No | Yes: Yes |
| Mobile responsive | Yes: Yes | Yes: Yes |
Cart upselling 7 features
| Feature | OCU Slide Cart | Rebuy Smart Cart |
|---|---|---|
| Product recommendations | Yes: Yes | Yes: Yes |
| Tiered rewards | Yes: Yes | Yes: Yes |
| Free gifts | Yes: Yes | Yes: Yes |
| Free shipping & shipping bar | Yes: Yes | Yes: Yes |
| Buy more, save more | No: No | Yes: Yes |
| Frequently bought together | No: No | Yes: Yes |
| Bulk discounts | No: No | Yes: Yes |
| What it costs | OCU Slide Cart | Rebuy Smart Cart |
|---|---|---|
| Price | Free | $45/mo + usage |
Sources: Rebuy Smart Cart documentation and rebuyengine.com/pricing; Zipify OCU Slide Cart Drawer documentation. Feature names follow the Shopify App Store cart and upsell taxonomy. Verified August 2026, subject to change.
AI & optimization
Self-optimizing AI offers, no hand-tuning
OCU’s AI offers run on product-page, cart, pre-purchase, and post-purchase placements, automatically shifting toward what converts. Fashion brand D’IYANU ran AI offers across dozens of products — and in split tests the AI beat their static bestsellers.
- D’IYANU upsell revenue in 90 days
- $43,961
- Increase in monthly upsell revenue
- +133%
OCU AI Assistant
A built-in assistant trained on 50,000 Shopify stores
The OCU AI Assistant is like having a personal expert and analyst to help you onboard faster, build upsells, split test, and optimize every step of your funnel. Other upsell apps give you a limited chatbot with the same generic tips for every store. OCU’s next-generation AI analyzes your store’s own data — click-through and conversion rates, recommendation performance, and funnel performance at every step — and tells you exactly which offers to build and what products to choose. And it’s trained on proprietary data from $1 billion in upsells. Data no other app has.
Trained on proprietary data from
- Upsell data
- $1B
- Shopify stores
- 50,000
- Expertise
- 10 years
Shopify Sidekick
OCU is the only upsell app that integrates with Shopify Sidekick
OCU is the first and only Shopify upsell app integrated with Shopify Sidekick, Shopify’s own built-in AI. That means OCU works hand-in-hand with the AI assistant Shopify merchants already rely on — an AI-first upsell experience no other app offers.
Optimization
Split testing every placement, included in the base plan
OCU split tests every placement it offers — pre-purchase, cart drawer, post-purchase, product page, in-checkout, and thank-you page — with multi-variant ABCD tests and traffic distribution in Zipify Plus. Rebuy tests well too, but its testing lives in the Flows & A/B Testing package at $35/mo on top of the packages you already bought. In OCU, testing is included for free.
For Shopify Plus
The best upsell app for Shopify Plus stores
Both apps are Shopify Plus Certified, and both offer in-checkout upsells — OCU includes them in its one plan; Rebuy sells them through its Checkout & Post-Purchase package. At the Plus tier, the real question is what you get when you pay for a managed experience.
On Rebuy, a dedicated CSM requires an annual agreement over $999/mo and Premium Support adds another $499/mo — nearly $1,500 before a single funnel gets built, because building them is still your job. Zipify Plus is $750/mo for a dedicated team that builds, split tests, and optimizes your funnels for you, backed by ten years of running upsells for eight- and nine-figure Shopify brands. No other upsell app offers anything like it.
And for high-volume Plus stores, PostProfit revenue alone can cover the cost of Zipify Plus, so you get fully managed upsells for free.
Results from managed Zipify Plus funnels
- for Foria in 90 days
- $165K
- for Cheech & Chong in 7 weeks
- $90,000
- for Triquetra in 6 months
- $211,885
Pricing models
Pricing: One Click Upsell vs. Rebuy
The two apps don’t just charge different amounts — they charge on different things. One bills you for the orders you were going to get anyway. The other bills you for the revenue it added.
One Click Upsell
Priced on the upsell revenue it generates.
One plan, on a flat monthly tier set by how much upsell revenue the app earned you that month. A month with 10,000 orders and no upsell revenue costs $9.95.
| Monthly upsell revenue | Your price | ROI |
|---|---|---|
| $0 – $200 | $9.95 | up to 20× |
| $200 – $500 | $25 | 8× – 20× |
| $500 – $1,000 | $49 | 10× – 20× |
| $1,000 – $2,500 | $99 | 10× – 25× |
| $2,500 – $5,000 | $149 | 17× – 34× |
| $5,000 – $7,500 | $199 | 25× – 38× |
| $7,500 – $10,000 | $269 | 28× – 37× |
| $10,000 – $15,000 | $399 | 25× – 38× |
| $15,000 – $20,000 | $499 | 30× – 40× |
| $20,000 – $25,000 | $599 | 33× – 42× |
| $25,000 – $30,000 | $699 | 36× – 43× |
| $30,000 – $35,000 | $799 | 38× – 44× |
| $35,000 – $40,000 | $899 | 39× – 44× |
| Over $40,000 | $999 | 40×+ |
Every placement is on every tier — product page, cart drawer, in-checkout, post-purchase, thank-you page, AI offers and unlimited split testing.
Rebuy
Priced on how many orders you receive.
A package fee set by your average monthly orders, plus a per-order usage fee on top, with a 500-order billing minimum. The bill arrives whether or not a single offer converted.
| Monthly orders | Cart + checkout | With Flows |
|---|---|---|
| Up to 500 | $69 | $104 |
| 1,000 | $136 | $171 |
| 2,000 | $268 | $303 |
| 3,000 | $396 | $431 |
| 5,000 | $640 | $675 |
| 10,000 | $1,180 | $1,215 |
| 15,000 | $1,734 | $1,769 |
Flows & A/B Testing is a separate package from $35/mo; Search & Collections is another. OCU includes split testing.
Rebuy’s model per rebuyengine.com/pricing, August 2026: package fees set by average monthly orders with a 500-order minimum, plus per-order usage fees; annual billing takes 10% off. One Click Upsell per its Shopify listing: one plan on a flat monthly tier set by the upsell revenue the app generates, $9.95 up to a $999 cap.
Rebuy pricing complaint — Shopify App Store review
“From a $25/month subscription as it’s advertised here on the marketplace, after installed I was asked for nearly $1k/month.”
Recommendation by store type
Which upsell app is best for your Shopify store?
If you’re on Shopify Plus or doing serious volume → One Click Upsell. Both apps are Plus Certified — the difference is what scale costs. At 15,000 orders, Rebuy’s packages run $1,734/mo for software. Zipify Plus gives you a dedicated team building your funnels for less.
If you also sell in person → One Click Upsell. Rebuy’s billing counts every order — including POS transactions its widgets never touch. OCU charges only on the upsell revenue its offers actually generate.
If you’re a newer store watching every dollar → One Click Upsell. Rebuy prices on a 500-order minimum — a 100-order store pays the same $69/mo as a 500-order store. OCU starts at $9.95/mo, set by the upsell revenue it generates.
If you want upsell revenue this week, not an implementation project → One Click Upsell. Rebuy’s own materials recommend success managers and paid implementation services. OCU’s AI Assistant recommends which offers to build first — most merchants launch the same day.
If you want sitewide personalization — search, merchandising, automation flows → Rebuy is a legitimate choice, and it does things OCU doesn’t attempt. Just total the packages at your order volume first — the table above shows exactly what you’re paying.
The honest verdict
So which is better for most merchants?
For most Shopify merchants, OCU is the better choice. Three cases where Rebuy is defensible:
- Choose Rebuy if you want sitewide personalization — search, collections, and merchandising, not just upsells.
- Choose Rebuy if you have the budget and team for a managed platform, with a dedicated CSM and implementation services.
- Choose Rebuy if you’re already deep in Rebuy’s integration ecosystem and want one vendor running all of it.
Those are real cases — and they’re platform purchases, at platform prices. For everyone else, the math decides it. Matching OCU’s upsell placements on Rebuy starts at $69/mo at 500 orders and reaches $1,180/mo at 10,000 — billed on every order, including in-person sales. OCU charges one flat monthly tier, from $9.95, set by the upsell revenue it generates — and it never exceeds $999, whatever your order count.
What our customers say:
OCU added $184K in upsell revenue in our first 90 days — with zero extra ad spend. It’s the highest-ROI app on our store, period.
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The Slide Cart, pre-purchase popups, PostProfit, AI funnels, in-checkout offers, and split testing are all live from day one. No stack required.
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