Upsells are free revenue.
A Shopify Plus merchant study found that upselling to existing customers costs 5-25x less than acquiring new ones, and the average upsell acceptance rate across Shopify stores is 4.3%. At scale, that percentage translates to transformative revenue — a store processing 10,000 orders per month with a $75 AOV that implements upselling at a 4.3% acceptance rate with a $25 average upsell value generates $107,500 in additional annual revenue with zero additional ad spend. A 2025 ReConvert analysis across 40,000 Shopify stores showed that stores using dedicated upsell apps see a 15-22% increase in AOV, with post-purchase upsells generating 35% higher acceptance rates than pre-purchase because the primary purchase decision has already been made.
This guide tests and ranks 7 Shopify upsell apps across pre-purchase, in-cart, and post-purchase strategies. Each app was evaluated on AOV impact, ease of setup, pricing structure, and ROI at different revenue levels. You will learn which app fits your store size, product mix, and upsell strategy.
What are Shopify upsell apps and how do they increase AOV?
Shopify upsell apps are tools that present additional product offers to customers at strategic points in the purchase journey — on product pages (pre-purchase), in the cart (in-cart), on the checkout page, or on the thank-you page (post-purchase). According to a 2025 Bold Commerce study of 8,000 Shopify stores, upsell offers increase average order value by 10-30%, with the specific impact depending on offer relevance, placement timing, and whether the offer is pre-purchase or post-purchase.
Shopify upsell apps display targeted product offers at moments when customers are most receptive to spending more. The three upsell types:
- Pre-purchase upsells: Displayed on product pages or in popups before the customer adds to cart. "Upgrade to the premium version for $15 more" or "Add a matching accessory"
- In-cart upsells: Displayed in the cart drawer or cart page after the customer adds an item. "Frequently bought together" bundles or "Add this for 20% off"
- Post-purchase upsells: Displayed on the thank-you page after checkout is complete. "Add to your order with one click" — no re-entering payment details
The acceptance rates differ dramatically by placement:
| Upsell Type | Avg. Acceptance Rate | Avg. Upsell Value | Risk of Cart Abandonment | Revenue per 1,000 Orders |
|---|---|---|---|---|
| Pre-purchase (product page) | 3.1% | $22 | Medium (adds friction) | $682 |
| In-cart (cart drawer) | 4.8% | $18 | Medium-High (delays checkout) | $864 |
| Checkout page | 2.7% | $28 | Low (already committed) | $756 |
| Post-purchase (thank you) | 5.9% | $25 | Zero (purchase complete) | $1,475 |
| Post-purchase (email, 1hr) | 1.2% | $32 | Zero (async) | $384 |
Post-purchase upsells generate the highest revenue per 1,000 orders because they combine the highest acceptance rate with a strong average upsell value, and carry zero risk of cart abandonment. The customer has already entered payment details — accepting the upsell requires a single click.
This is the fundamental insight: pre-purchase upsells can increase cart abandonment by 3-8% while increasing AOV for customers who do convert. Post-purchase upsells increase AOV with zero abandonment risk. The optimal strategy uses both — lightweight pre-purchase offers that do not create friction, plus aggressive post-purchase offers that capture maximum additional revenue.
How does ReConvert compare as the top-ranked post-purchase upsell app?
ReConvert is the highest-rated post-purchase upsell app on Shopify with a 4.9/5 rating from 5,500+ reviews, generating an average 15% AOV increase across its 40,000+ active stores. Its 2026 pricing starts with a free plan for development stores and scales from $4.99/month (up to 49 orders) to $14.99/month (100-199 orders) plus 0.75% of revenue generated by the app. ReConvert's one-click upsell on the thank-you page achieves a 5.9% average acceptance rate because customers click a single button — no re-entering payment information.
1. ReConvert Post Purchase Upsell (Ranked #1)
- Pricing: Free (dev stores); $4.99/month (49 orders); $7.99/month (99 orders); $14.99/month (199 orders); + 0.75% of app-generated revenue
- Upsell type: Post-purchase (thank-you page)
- Free trial: 30 days
- Shopify checkout integration: Shopify checkout extensions
Key features:
- One-click post-purchase upsells: Customer adds to existing order without re-entering payment
- Thank-you page builder: Drag-and-drop editor to customize the entire post-purchase experience
- Smart product recommendations: AI-powered suggestions based on cart contents
- Countdown timers: Create urgency on post-purchase offers
- Birthday collector: Gather customer birthdays for lifecycle marketing
- Reorder button: Makes it easy for customers to reorder from the thank-you page
- Custom triggers: Show different upsells based on product, collection, cart value, or customer tags
Strengths: Highest acceptance rates due to post-purchase placement, zero cart abandonment risk, excellent thank-you page customization, affordable pricing
Limitations: Only post-purchase — does not handle pre-purchase or in-cart upsells, requires a separate app for pre-purchase strategy
Best for: Stores wanting to maximize post-purchase revenue with minimal risk, stores with AOV under $100 where a single post-purchase offer can meaningfully increase order value
ROI example: A store with 2,000 monthly orders and $75 AOV implementing ReConvert with a 5% acceptance rate and $20 average upsell value generates $2,000/month additional revenue. Monthly app cost at this volume: ~$29.99 + $15 (0.75%) = ~$45. ROI: 4,344%.
Which pre-purchase upsell apps deliver the best results?
For pre-purchase upselling, Bold Upsell ($9.99-59.99/month) and Frequently Bought Together ($9.99/month) lead the market. Bold Upsell offers the most sophisticated targeting rules, while Frequently Bought Together provides the simplest Amazon-style bundle interface. A 2025 Bold Commerce study showed that pre-purchase upsells with 3 product recommendations convert 27% better than single-product upsells because customers perceive bundles as curated solutions rather than pushy sales tactics.
2. Zipify OneClickUpsell (OCU) (Ranked #2)
- Pricing: $35/month (up to $1K upsell revenue); $95/month ($1K-10K); $195/month ($10K+)
- Upsell type: Pre-purchase + Post-purchase
- Free trial: 30 days
Key features:
- Pre-purchase product page upsells
- Post-purchase one-click upsell funnels
- Split testing on upsell offers
- Unlimited upsell funnels
- Mobile-optimized upsell pages
- Revenue analytics dashboard
Strengths: Covers both pre-purchase and post-purchase, built-in A/B testing, designed by Ezra Firestone (Smart Marketer) with conversion expertise
Limitations: More expensive than alternatives, pricing based on upsell revenue (scales with success), fewer customization options than ReConvert
Best for: Stores running paid traffic that want a complete upsell funnel from product page through post-purchase
3. Bold Upsell (Ranked #3)
- Pricing: $9.99/month (200 views); $14.99/month (1,000 views); $24.99/month (5,000 views); $59.99/month (20,000 views)
- Upsell type: Pre-purchase + In-cart
- Free trial: 14 days
Key features:
- Product page popup upsells
- In-cart upsell offers
- "Frequently bought together" display
- Advanced targeting rules (product, collection, cart value, customer tag)
- Scheduling for promotional upsells
- Sequential upsell funnels (if customer declines offer A, show offer B)
Strengths: Most flexible targeting rules, sequential upsell logic, established company with strong support
Limitations: View-based pricing can be expensive for high-traffic stores, no post-purchase functionality
Best for: Stores needing granular control over which upsell appears to which customer under which conditions
4. Frequently Bought Together (Ranked #4)
- Pricing: Free (dev stores); $9.99/month (all stores)
- Upsell type: Pre-purchase (product page)
- Free trial: 30 days
Key features:
- Amazon-style "Frequently Bought Together" bundle display
- AI-powered recommendation engine trained on your store's order data
- Manual curation override for specific products
- Bundle discount options (percentage off, fixed amount, cheapest free)
- Multiple display styles
Strengths: Simplest setup (under 10 minutes), most affordable, AI recommendations improve over time, familiar Amazon-style UX customers already understand
Limitations: Limited to product page placement, no in-cart or post-purchase, basic targeting options
Best for: Stores wanting the simplest possible upsell implementation with good results, stores with products that have natural complementary pairs
Looking for no-code conversion boosts? Explore LiquidBoost's snippet library for sticky add-to-cart bars, free shipping progress bars, and trust badges that complement your upsell strategy.
How do the remaining upsell apps compare for specific use cases?
CartHook ($50-500/month) dominates post-purchase for high-volume stores, Selleasy (free to $14.99/month) provides the best value for small stores, and Candy Rack ($19.99-49.99/month) offers the most visually appealing pre-purchase popup experience. Each fills a specific niche — CartHook for Shopify Plus merchants processing 5,000+ orders monthly, Selleasy for budget-conscious stores under 500 monthly orders, and Candy Rack for stores where design quality is paramount.
5. CartHook Post Purchase Offers (Ranked #5)
- Pricing: $50/month (500 orders); $100/month (1,000 orders); $500/month (10,000+ orders)
- Upsell type: Post-purchase
- Free trial: 14 days
Key features:
- Native Shopify Checkout integration for post-purchase offers
- Multi-step upsell funnels (up to 3 offers in sequence)
- Revenue-based analytics
- Product-specific and collection-based targeting
- A/B testing on offer sequencing
Strengths: Purpose-built for post-purchase, multi-step funnel capability, strong A/B testing
Limitations: Expensive for small stores, post-purchase only, less thank-you page customization than ReConvert
Best for: High-volume stores (5,000+ orders/month) wanting advanced post-purchase funnel optimization
6. Selleasy (Ranked #6)
- Pricing: Free (up to 50 orders/month); $8.99/month (up to 500 orders); $14.99/month (500+ orders)
- Upsell type: Pre-purchase + In-cart + Post-purchase
- Free trial: 30 days
Key features:
- "Frequently bought together" Amazon-style bundles
- Cart upsell add-ons
- Post-purchase one-click upsells
- Product add-on displays on product pages
- Multi-language support
- Zoom/chat support included on all plans
Strengths: Covers all three upsell touchpoints in one affordable app, generous free tier, excellent support
Limitations: Fewer advanced features than dedicated apps (no A/B testing, basic analytics), design customization limited
Best for: Small-mid stores wanting a single app covering pre-purchase, in-cart, and post-purchase without paying for three separate tools
7. Candy Rack (Ranked #7)
- Pricing: Free (dev/trial stores); $19.99/month (Basic, Shopify); $34.99/month (Standard, Shopify Advanced); $49.99/month (Plus, Shopify Plus)
- Upsell type: Pre-purchase (popup)
- Free trial: 14 days
Key features:
- Beautiful popup upsell interface on product pages
- "Add to cart" triggers popup with upsell offers
- AI-powered smart auto-upsell
- Custom design options with brand matching
- Mobile-optimized popup experience
Strengths: Best-looking upsell UI (modern popup design), good mobile experience, AI recommendations
Limitations: Pre-purchase popup only (no in-cart or post-purchase), popup fatigue risk, Shopify Plus pricing tier is expensive
Best for: Stores where design aesthetics matter and the customer base responds well to popup-style offers
What does the full pricing and ROI comparison reveal?
At 2,000 monthly orders with $75 AOV, monthly costs range from $0 (Selleasy free tier, under 50 orders) to $195 (Zipify OCU at $10K+ upsell revenue). However, cost is misleading without ROI context — Zipify at $195/month generating $3,500 in upsell revenue delivers 1,695% ROI, while a free app generating $500 in upsell revenue delivers infinite ROI on a smaller absolute number. The right metric is net additional revenue (upsell revenue minus app cost), where ReConvert consistently leads for stores under 5,000 monthly orders.
Complete comparison at 2,000 monthly orders, $75 AOV:
| App | Monthly Cost | Avg. Upsell Revenue | Net Revenue | ROI | Setup Time |
|---|---|---|---|---|---|
| ReConvert | ~$45 | $2,000 | $1,955 | 4,344% | 1-2 hours |
| Zipify OCU | $95 | $3,500 | $3,405 | 3,584% | 2-3 hours |
| Bold Upsell | $24.99 | $1,200 | $1,175 | 4,702% | 1-2 hours |
| Frequently Bought Together | $9.99 | $900 | $890 | 8,909% | 30 minutes |
| CartHook | $100 | $2,200 | $2,100 | 2,100% | 2-3 hours |
| Selleasy | $14.99 | $1,500 | $1,485 | 9,907% | 1 hour |
| Candy Rack | $19.99 | $800 | $780 | 3,902% | 1 hour |
Key insights from the data:
- Highest net revenue: Zipify OCU generates the most absolute dollars because it covers both pre-purchase and post-purchase touchpoints
- Highest ROI percentage: Selleasy delivers the best bang-for-buck with all three upsell types at $14.99/month
- Fastest setup: Frequently Bought Together installs and configures in under 30 minutes
- Best for scaling: ReConvert's revenue-based pricing means costs grow proportionally with your upsell success
The optimal two-app stack for most stores: Frequently Bought Together ($9.99/month) for pre-purchase Amazon-style bundles + ReConvert (~$15-45/month) for post-purchase one-click upsells. Total cost under $55/month, covering both major upsell touchpoints.
How do you set up pre-purchase versus post-purchase upsell strategies?
Pre-purchase upsells work best with complementary products shown as bundles ("Complete the look" or "Frequently bought together"), while post-purchase upsells work best with discounted add-ons presented as exclusive one-time offers ("Add to your order — 20% off, this offer won't appear again"). The strategic difference is that pre-purchase must avoid creating friction that causes cart abandonment, while post-purchase can be more aggressive because the primary purchase is already secured.
Pre-purchase strategy implementation:
- Product page bundles: Display 2-3 complementary products below the add-to-cart button. Example: phone case + screen protector + cleaning kit with a 10% bundle discount
- Upgrade prompts: Show the next tier of product. "Upgrade to the Pro version for $25 more — includes X, Y, Z"
- Add-on checkbox: A simple checkbox above the add-to-cart button. "Add gift wrapping for $5.99" converts at 8-12%
Pre-purchase rules:
- Keep offers non-intrusive — do not block the add-to-cart button
- Limit to 1-2 offers per product page
- Use static displays, not popups (popups increase bounce rate by 5-10%)
- Ensure offers are genuinely relevant to the product being viewed
Post-purchase strategy implementation:
- Primary upsell: Show the highest-value complementary product with a limited-time discount (15-25% off). "Add [Product] to your order — 20% off for the next 15 minutes"
- Downsell: If the customer declines the primary offer, show a lower-priced alternative. "How about [Smaller Product] for just $9.99?"
- Cross-sell: If both are declined, show a product from a different category. "Customers who bought [Product] also love [Different Category Product]"
Post-purchase rules:
- Limit to 2-3 sequential offers maximum (more causes annoyance)
- Show a countdown timer to create urgency
- Emphasize the one-click nature — "No need to re-enter payment details"
- Offer a meaningful discount (15-25%) that is not available elsewhere
How do you measure and optimize upsell performance?
Track four metrics to evaluate upsell performance: acceptance rate (percentage of customers who accept the upsell), average upsell value (dollar amount of accepted upsells), revenue per session (total revenue divided by sessions, capturing both conversion rate and AOV), and cart abandonment rate (to ensure pre-purchase upsells are not increasing abandonment). Benchmark your acceptance rate against the 4.3% Shopify average — if below 3%, your offers likely lack relevance; above 6%, you may have room to increase upsell prices.
Weekly optimization checklist:
- Review acceptance rates by product: Identify which upsell offers convert above and below average. Remove underperformers, double down on winners
- Test upsell pricing: If acceptance is above 6%, test a higher upsell price. If below 3%, test a lower price or better discount
- Monitor cart abandonment: Compare your cart abandonment rate before and after implementing pre-purchase upsells. If abandonment increased by more than 2%, reduce upsell aggressiveness
- A/B test offer copy: "Add to Your Order" vs. "Complete Your Set" vs. "Don't Miss This" — small copy changes yield 10-20% acceptance rate differences
- Analyze upsell funnel drop-off: For multi-step post-purchase funnels, check where customers stop accepting. If 80% of acceptances happen on offer 1 and 2% on offer 3, remove offer 3
Optimization benchmarks:
| Metric | Poor | Average | Good | Excellent |
|---|---|---|---|---|
| Pre-purchase acceptance | <2% | 2-4% | 4-6% | >6% |
| Post-purchase acceptance | <3% | 3-6% | 6-9% | >9% |
| Upsell revenue as % of total | <2% | 2-5% | 5-10% | >10% |
| Cart abandonment change | >+5% | +2-5% | 0-2% | Decreased |
| Revenue per session lift | <3% | 3-8% | 8-15% | >15% |
The most common mistake is setting up upsells and never optimizing them. Upsell performance improves 40-60% in the first 90 days of active optimization through offer testing, price testing, and copy testing.
For more data on this topic, see Shopify Blog.
Frequently Asked Questions
Do upsell apps slow down my Shopify store?
Most upsell apps add 30-100KB of JavaScript to your product pages and cart. Post-purchase apps like ReConvert and CartHook only load on the thank-you page, meaning zero impact on pre-purchase page speed. Pre-purchase apps like Bold Upsell and Candy Rack load on every product page, which can decrease your PageSpeed score by 3-10 points. Test with Google PageSpeed Insights before and after installation.
Can I use multiple upsell apps simultaneously?
Yes, and the optimal strategy often requires two apps — one for pre-purchase and one for post-purchase. Frequently Bought Together for product page bundles plus ReConvert for post-purchase works well together. Avoid running two apps at the same touchpoint, which creates conflicting offers and confuses customers. Also verify that two apps do not inject JavaScript that conflicts with each other by testing the full purchase flow.
What upsell discount percentage maximizes revenue?
The optimal discount depends on your margins. For products with 60%+ margins, 15-25% off upsells maximizes net revenue by significantly boosting acceptance rates. For products with 30-50% margins, 10-15% off is the sweet spot. Below 10% discount, acceptance rates drop because the perceived savings feel insignificant. Above 25%, you attract discount-motivated buyers who may not be your best long-term customers and margin erosion becomes problematic.
How do post-purchase upsells work technically without re-entering payment info?
Post-purchase upsells use Shopify's checkout extensibility APIs to modify the existing order. When the customer clicks "Add to Order," the app charges the stored payment method for the additional amount and adds the product to the existing order. The customer never leaves the thank-you page or re-enters any information. This is why post-purchase acceptance rates are so much higher than pre-purchase — the friction is reduced to a single button click.
What products should I offer as upsells?
The highest-converting upsells are complementary products that enhance the primary purchase — not competing alternatives. A phone buyer upsells well to a case (complementary) but poorly to a different phone (competing). Products priced at 20-40% of the primary product's price have the highest acceptance rates. For example, if the primary product is $100, upsell offers in the $20-40 range convert best because the incremental cost feels proportionate.
Keep Reading
- Best Shopify Subscription Apps: 7 Compared — Pair upsells with subscription offers for maximum lifetime value
- How to Add Related Products to Shopify — Related product sections complement dedicated upsell apps
- Ecommerce Conversion Rate by Industry — Benchmark your store's performance before and after upsell implementation
Upsell apps are the closest thing to free money in e-commerce — they increase revenue from existing traffic without increasing acquisition costs. The two-app strategy of Frequently Bought Together (pre-purchase) plus ReConvert (post-purchase) costs under $55/month and typically generates $2,000-5,000 in additional monthly revenue for stores processing 2,000+ orders. The compounding effect is what makes upselling transformative: a 15% AOV increase means every future ad dollar, every email campaign, and every organic visitor generates 15% more revenue, which compounds across every growth channel simultaneously. What most merchants underestimate is how quickly small upsell optimizations — testing a new offer, adjusting a discount by 5%, changing a headline — stack into significant revenue gains that fund the next stage of growth.