20 Best Shopify Upsell Apps in 2026

A Shopify upsell app is a tool that shows an additional or upgraded product offer at one of four points in the buying journey: the product page, the cart drawer, the one-click post-purchase screen, or the thank-you page. There is no single best app, because no app wins all four placements. Pick by placement.

TL;DR

• Post-purchase converts highest per offer at roughly 5–12%, because the customer has already entered payment details and the offer carries no checkout friction.
• Cart drawer generates the most total revenue, because it reaches 100% of shoppers who add to cart rather than only those who complete checkout.
• Keep any upsell within about 30% of the original item price. Abandonment rises sharply past that threshold.
• Mobile is where upsells break. Mobile cart abandonment runs near 80% against roughly 66% on desktop, so a cart drawer that is slow or cramped on mobile loses more than it earns.
• Watch revenue share, not sticker price. A 1% revenue share on a store doing $200k/month costs $2,000/month — more than most flat-fee plans on this list.

Quick answer: the best app for each placement

If you only read one section, read this one.

• Best cart drawer upsell app: Oxify Cart Drawer & Upsells — the lowest-priced app that covers all four placements in one install, from $9.99/mo with no revenue share. UpCart is the closest design-led alternative.
• Best product page / Frequently Bought Together app: Essential Upsell & Cross Sell (5.0, 2,197 reviews), with Selleasy (4.9, 2,466 reviews) the strongest free starting point.
• Best post-purchase upsell app: AfterSell (by Rokt) for checkout-native offers, Upsell.com (formerly ReConvert) for heavily customised thank-you pages.
• Best bundle and quantity break app: Oxify Product Bundles & BYOB for tiered pricing, Amplify (formerly PickyStory) for complex mix-and-match, BOGOS for gift-with-purchase campaigns.
• Best for enterprise and large catalogs: Rebuy, if you have a CRO team to run it and volume to justify the price.
• Best free option: Selleasy (free under 50 orders/month) and Essential Upsell (free under $100 in upsell revenue).

How we ranked these apps

We do not publish a single “#1 best” ranking, because the four upsell placements solve different problems and are won by different apps. Ranking a cart drawer app against a post-purchase app produces a number that is not useful to anyone.

For every app we checked the live Shopify App Store listing, the current rating and review count, the real pricing including revenue share, Built for Shopify status, and which of the four placements it covers in a single install. We also read recent merchant reviews for support and billing complaints.

Disclosure: Oxify builds two of the apps on this list — Oxify Cart Drawer & Upsells and Oxify Quantity Breaks & BYOB. Both are newer apps with smaller review counts than the established players, and we say so in their entries. We rank them as category picks based on placement coverage and pricing structure, which are verifiable facts, not on popularity, which they have not yet earned.

Ratings and pricing last verified: 1 August 2026, against live Shopify App Store listings.

The 4 upsell placements (and what each converts at)

Most lists cover three. There are four, and each reaches a different shopper at a different moment.

1. Product page upsell (before add to cart)

Shown before the shopper commits. Best for Frequently Bought Together bundles, multi-packs, premium tiers, and add-ons like gift wrap or warranty. Typical conversion: 1–3% baseline, 4–8% on a strong FBT widget. Full setup guide: Product page upsell on Shopify.

2. Cart drawer upsell (inside the slide cart)

Reaches every shopper who adds to cart, which is why it produces the most total revenue even though its per-offer rate is moderate. Free-shipping progress bars and free-gift thresholds are the highest performers here. Typical conversion: 2–5% on simple recommendations, 6–14% on free-gift thresholds. See how to add upsells to your cart drawer.

3. Post-purchase upsell (one click after checkout)

Shown after payment is captured. The customer accepts with one tap and no re-entry of card details, which is why acceptance rates are the highest of any placement and why it cannot hurt your checkout conversion rate. Typical conversion: 5–12% average, 14–22% on a well-matched add-on with a downsell fallback. See one-click post-purchase upsell setup and whether post-purchase upsells hurt conversion.

4. Thank-you page upsell

The order status page, shown after the post-purchase offer. Best for reorder prompts, subscription upgrades, referrals and review requests. Typical conversion: 3–7% on reorder offers. See how to add a thank-you page upsell.

The compounding effect

These placements stack rather than compete, because each one reaches a shopper at a different decision point. Across the stores we track inside Oxify, merchants running offers in all four placements typically lift average order value by 10–30% within the first two weeks. Running one placement in isolation captures a fraction of that.

Quick comparison: 20 best Shopify upsell apps

Which apps cover all four placements in one install?

Only four of the twenty apps on this list cover the product page, cart drawer, post-purchase and thank-you page from a single install. Everything else covers one or two placements well and leaves you to install a second app for the rest.

The short version: if you want full placement coverage without stacking apps, Oxify Cart Drawer & Upsells is the lowest-cost option that does it, Candy Rack is the most design-polished, and Rebuy is the only one with enterprise AI recommendation logic. Honeycomb sits between them with the strongest funnel split-testing.

Everything else on this list is a specialist. That is not a criticism — a specialist that fits your one gap often beats a suite you only half-use. It just means you should count your placements before you count features.

Best cart drawer upsell apps

Oxify Cart Drawer & Upsells

Rating: 4.9 (37 reviews) · Best for: stores that want all four placements without stacking apps · Where it shows: product page, cart drawer, post-purchase, thank-you page

Oxify Cart Drawer & Upsells is a Built for Shopify app that runs upsell offers in all four placements — product page, cart drawer, one-click post-purchase, and thank-you page — from a single theme app extension, at flat order-based pricing with no revenue share.

What it does differently: Most apps own one placement well and bolt on the rest, which is why merchants end up running three apps and paying three bills. Oxify Cart Drawer & Upsells was built to cover all four from one install, removing the cart conflicts, script bloat and duplicated billing that stacking creates.

What is included in one install:

• Cart drawer: slide cart with free-shipping progress bar, free-gift thresholds, in-cart upsells and cross-sells, order notes, gift wrap, discount code field, trust badges, countdown timers, and express checkout buttons.
• Product page: Frequently Bought Together widgets, add-ons and volume offers before add-to-cart.
• Post-purchase: one-click offers after payment with downsell fallbacks, no re-entry of card details.
• Thank-you page: reorder prompts, cross-sells and subscription upgrades on the order status page.
• Commerce depth: subscription and split-payment upsells in the cart, BOGO and bundle discounts, and rule-based targeting by product, collection, cart value and customer tag.
• International: Shopify Markets, multi-currency, and 8+ languages including right-to-left for Arabic and Hebrew.
• Reporting: per-offer revenue attribution rather than a single blended total.

Pricing: Tiered by monthly order volume, with a 14-day free trial on every plan and no revenue share: $9.99/mo up to 100 orders, then $19.99, $29.99, $49.99, $79.99 and $99.99 as volume rises, up to $149.99/mo at 3,001+ orders, plus a $299/mo enterprise plan. Because the tiers are order-based rather than revenue-based, a high-AOV store pays the same as a low-AOV store at the same order count — which is where a percentage-based competitor starts costing meaningfully more.

Pros: All four placements in one install · flat pricing with no revenue share · Built for Shopify · no-code theme app extension setup · per-offer revenue attribution · Markets and RTL language support

Cons: 37 reviews is a small sample next to apps with thousands · no free tier, only a trial · newer app with a shorter track record

Who should avoid it: Stores under about 30 orders a month, where a free tier from Selleasy or Essential Upsell will prove the concept at zero cost first. Also skip it if you need enterprise AI recommendation logic across a 10,000-SKU catalog — that is Rebuy’s job.

UpCart

Best for: merchants who want the most polished slide-cart design · Where it shows: cart drawer only

What it does differently: UpCart is a cart drawer specialist. Its strength is design quality and the gamified reward bar — the “spend $10 more for free shipping” progress mechanic that reliably lifts AOV. It does this one placement better than most all-in-one apps do it as a secondary feature.

Pros: Best-in-class cart drawer design · strong reward and progress bar mechanics · fast to configure

Cons: Cart drawer only — no post-purchase or thank-you page · you will need a second app for post-purchase

Who should avoid it: Anyone who wants post-purchase upsells, which is the highest-converting placement. UpCart cannot do it.

In Cart Upsell (ICU)

Rating: 4.8 (545 reviews) · Best for: rule-heavy conditional targeting in the cart

What it does differently: ICU has the deepest conditional logic of the cart-focused apps — show offer X only if cart contains Y, excludes Z, and totals over $N. Built-in A/B testing. Free tier covers one offer.

Pros: Deep targeting rules · free tier to test · built-in split testing

Cons: Interface is dated · limited post-purchase · rules take time to configure well

Who should avoid it: Merchants who want to launch in 20 minutes. ICU rewards configuration effort; it punishes impatience.

iCart Cart Drawer

Best for: budget-conscious stores wanting drawer-based cross-sells · Where it shows: cart drawer, cart popup

What it does differently: A lower-cost entry into cart drawer upselling with pop-up and drawer offer formats. Reasonable feature depth for the price.

Pros: Affordable · quick setup · multiple offer formats

Cons: Design polish trails UpCart · cart placement only

Who should avoid it: Brands where cart drawer aesthetics are part of the brand experience. See our iCart alternative comparison.

Best product page and Frequently Bought Together apps

Essential Upsell & Cross Sell

Rating: 5.0 (2,197 reviews) · Best for: the strongest free starting point for product page upsells

What it does differently: Essential combines Frequently Bought Together widgets, AI recommendations, and product page plus cart upsells, and its free tier runs until you have generated $100 in upsell revenue — meaning the app pays for itself before it charges you. That pricing model is why it carries a 5.0 across more than 2,000 reviews.

Pricing: Free to $100 upsell revenue, then $9.99–$39.99/mo.

Pros: Genuinely useful free tier · 5.0 rating at high review volume · fast setup · covers product page and cart

Cons: Thank-you page support is limited · checkout upsells require Shopify Plus · less design control than dedicated cart apps

Who should avoid it: Stores whose primary need is a designed cart drawer experience or a multi-step post-purchase funnel.

Selleasy (by Logbase)

Rating: 4.9 (2,466 reviews) · Best for: the easiest free start

What it does differently: Selleasy is the app most often recommended to merchants who have never run an upsell. Free under 50 orders a month, clean interface, covers product page FBT, cart, and post-purchase without a configuration project.

Pricing: Free to 50 orders/month, then $8.99–$16.99/mo.

Pros: Free tier is generous · genuinely beginner-friendly · strong support reputation · covers three placements

Cons: Limited thank-you page · fewer design controls · analytics are basic

Who should avoid it: High-volume stores that will blow past the free tier immediately and want deeper analytics. See our Selleasy alternative guide.

Frequently Bought Together (CBB)

Rating: 4.9 (1,027 reviews) · Best for: one job, done well

What it does differently: Replicates the Amazon-style FBT module using purchase-history data. It does not try to be a suite. If your only gap is the product page, this is the cleanest fix. Compare approaches in manual vs AI FBT and check the FBT conversion benchmarks.

Pros: Excellent at its single job · free tier · proven algorithm · lightweight

Cons: Product page only · no cart, post-purchase or thank-you page

Who should avoid it: Anyone who needs more than one placement — you will end up paying for a second app.

Best post-purchase and thank-you page upsell apps

AfterSell (by Rokt)

Rating: 4.8 (874 reviews) · Best for: checkout-native and post-purchase offers

What it does differently: AfterSell is the most established name for embedding upsell blocks directly into Shopify Checkout via Checkout Extensibility, plus post-purchase and thank-you page offers. Split testing is built in. Flat pricing with no revenue share.

Pricing: From $34.99/mo, scaling with order volume.

Pros: Strong checkout integration · no revenue share · built-in A/B testing · mature product

Cons: No product page upsells · cart drawer is an add-on · checkout placement requires Shopify Plus · higher entry price

Who should avoid it: Non-Plus stores, which cannot use the checkout placement that is AfterSell’s main differentiator, and stores needing product page coverage.

Upsell.com (formerly ReConvert)

Rating: 4.8 (2,803 reviews) · Best for: heavily customised thank-you pages

What it does differently: The most flexible thank-you page builder on Shopify — drag-and-drop blocks for upsells, surveys, reorder prompts, birthday capture and referrals. Free to start, then 0.75% revenue share.

Pros: Deepest thank-you page customisation · free entry point · very large review base · post-purchase one-click offers

Cons: plan tiers are capped by order count and by upsell revenue generated, so costs step up as you scale · limited product page and cart · the builder has a learning curve

Who should avoid it: Stores that need product page and cart coverage from the same app. Also check the plan caps before committing — the published App Store tiers top out at 200 orders and $200 of upsell revenue a month.

Zipify OneClickUpsell

Rating: 4.5 (495 reviews) · Best for: Shopify Plus stores running structured funnel split-tests

What it does differently: The original one-click post-purchase app. Its strength is chronological multi-step funnels with split-testing across product page, cart, Plus checkout, post-purchase, thank-you and order status.

Pros: Deep funnel logic · strong split-testing · broad placement coverage · established team

Cons: $35/mo plus 1% revenue share · lowest rating on this list · complexity is overkill for small stores

Who should avoid it: Sub-$50k/month stores. The combination of base fee, revenue share and setup complexity does not pay back at that volume.

SMART Checkout Rules & Upsells

Rating: 5.0 (573 reviews) · Best for: Plus merchants who need checkout rules, not just offers

What it does differently: Combines checkout validation rules with upsell blocks, and it is free. Narrower than the others but excellent at the specific job.

Pros: Free · 5.0 rating · combines rules and upsells

Cons: Requires Shopify Plus · no product page or cart drawer

Who should avoid it: Every non-Plus store.

Best bundle and quantity break apps

Oxify Quantity Breaks & BYOB

Rating: 4.9 (11 reviews) · Best for: tiered pricing and build-your-own-box bundles

What it does differently: Handles tiered quantity pricing, build-your-own-box, mix-and-match and subscription bundles in one app, and it is free with no revenue share — against Kaching’s 1%. On a store doing $100k/month in bundle revenue, that 1% is $1,000/month you keep. Background reading: how many discount tiers to use and quantity break strategies that lift AOV.

Pros: Free with no revenue share · BYO box and mix-and-match · subscription support · Built for Shopify

Cons: Only 9 reviews — the smallest sample on this list · no post-purchase or thank-you page · young product

Who should avoid it: Merchants who need a long public track record before installing, and and anyone already running Kaching whose bundle volume is low enough that its 1% share costs less than the switching effort.

Kaching Bundles

Rating: 5.0 (5,013 reviews) · Best for: bundle-led and quantity-break stores wanting a free start

What it does differently: The most-reviewed bundle app on Shopify. Free to start with a 1% revenue share, strong volume-discount and BOGO logic.

Pros: Huge review base at 5.0 · free entry · excellent bundle UX · fast setup

Cons: 1% revenue share is the highest here · no post-purchase · limited cart drawer

Who should avoid it: Anyone past about $50k/month, where 1% outweighs a flat fee. See our Kaching alternative comparison.

Amplify (formerly PickyStory)

Best for: complex mix-and-match and multi-step bundle logic

What it does differently: The deepest bundle logic available — AI bundles, mix-and-match, pre-purchase and post-purchase offers in one system. Handles bundle scenarios other apps cannot express.

Pros: Most capable bundle engine · covers pre- and post-purchase · strong for large catalogs

Cons: Premium pricing · genuine learning curve · overkill for simple quantity breaks

Who should avoid it: Stores that just need “buy 3, save 15%”. Use a quantity break app instead.

BOGOS: Free Gift Bundle Upsell

Rating: 5.0 (4,015 reviews) · Best for: gift-with-purchase and BOGO campaigns

What it does differently: Specialises in Buy X Get Y, gift-with-purchase and threshold gifts — the mechanics that drive the 6–14% cart conversion rates noted above. See how to add a free gift with purchase.

Pros: Best-in-class gift logic · very large review base · free to 30 orders

Cons: No post-purchase or thank-you page · narrow beyond gifting

Who should avoid it: Stores that do not run gift or BOGO promotions.

Best all-in-one and enterprise apps

Rebuy Personalization Engine

Rating: 4.7 (741 reviews) · Best for: enterprise catalogs with a dedicated CRO team

What it does differently: The deepest AI personalisation on Shopify, mapping recommendations across every surface and channel. Genuinely powerful, and genuinely demanding.

Pros: Deepest AI · every placement · scales to huge catalogs · strong integrations

Cons: $99/mo entry and it climbs steeply · needs someone to own it · overkill under a few thousand orders/month

Who should avoid it: Any store without a person whose job includes conversion optimisation. See our Rebuy alternative comparison.

Candy Rack (Digismoothie)

Rating: 4.9 (221 reviews) · Best for: mid-size DTC brands that care about polish

What it does differently: The cleanest visual execution of upsell offers, with all four placements covered and no revenue share.

Pros: Excellent design quality · all four placements · flat pricing · 5.0 rating

Cons: Smaller review base · $29.99/mo entry · fewer targeting rules than ICU

Who should avoid it: Rule-heavy merchants who need deep conditional targeting.

Honeycomb (Conversion Bear)

Rating: 4.6 (147 reviews) · Best for: multi-step funnel testing on a budget

What it does differently: Multi-step upsell and downsell funnels with built-in split testing, plus a free tier.

Pros: Free tier · funnel and downsell logic · split testing · pre-built templates

Cons: Paid tier jumps to $49.99/mo · smaller review base · dated interface

Who should avoid it: Merchants wanting a designed cart drawer — Honeycomb is funnel-first, not design-first.

Bold AI Upsell & Cross-Sell

Rating: 4.4 (528 reviews) · Best for: stores already running other Bold apps

What it does differently: Solid AI-driven upsells that integrate with Bold’s subscription and pricing tools. The integration is the reason to pick it.

Pros: Low $9.99 entry · Bold ecosystem integration · subscription-aware

Cons: Usage-based pricing is hard to forecast · limited thank-you page · weaker standalone value

Who should avoid it: Stores not already using Bold. The integration advantage does not apply, and standalone competitors are stronger.

Best free Shopify upsell apps

• Essential Upsell & Cross Sell — free until $100 in upsell revenue. The most generous structure: it earns before it bills.
• Selleasy — free under 50 orders/month. Easiest setup of the free options.
• Frequently Bought Together (CBB) — free tier for product page FBT.
• In Cart Upsell — free for one active offer.
• SMART Checkout Rules — fully free, Shopify Plus only.
• Honeycomb — free tier before the $49.99 jump.
• Oxify Quantity Breaks & BYOB — free, with no revenue share, for tiered pricing and build-your-own-box bundles.

Best Shopify Plus and checkout upsell apps

Checkout-level upsells require Shopify Plus and Checkout Extensibility. Native checkout offers are unavailable on lower plans regardless of which app you install.

• AfterSell — the most established checkout-extensibility implementation.
• SMART Checkout Rules & Upsells — free, combines validation rules with offers.
• Zipify OneClickUpsell — strongest for structured checkout funnel split-tests.
• Rebuy — if you also need personalisation across every other surface.

Not on Plus? Post-purchase is your highest-converting available placement, and it works on every Shopify plan.

Pick by store stage

• Under 50 orders/month: Start free. Selleasy or Essential Upsell. Prove the lift before you pay anything.
• 50–500 orders/month: Move to a flat-fee app covering multiple placements — Oxify Cart Drawer & Upsells or Candy Rack. Avoid revenue share from here up.
• 500–3,000 orders/month: Add a dedicated post-purchase layer if your app does not cover it. AfterSell or Upsell.com. Run the revenue-share math first.
• 3,000+ orders/month or Shopify Plus: Rebuy for personalisation depth, or AfterSell plus a cart drawer app. At this volume any revenue share is your largest app cost.

Will an upsell app pay for itself? Quick math

Take a store doing 500 orders a month at a $60 average order value — $30,000 in monthly revenue. A 20% AOV lift from upsells across all four placements adds $6,000/month.

Against that, a $9.99–$34.99 fixed-fee app is a rounding error. But a 1% revenue share on the new $36,000 total is $360/month, and it grows every month you succeed. The pricing model matters more than the price. Run your own numbers with our AOV calculator.

7-step setup playbook (live in 30 minutes)

1. Pick one placement to start. Post-purchase if you want the fastest measurable win, cart drawer if you want the largest total revenue.
2. Choose one hero offer. Your best-selling complementary product, priced under 30% of the typical cart value.
3. Install as a theme app extension. No code, no theme file edits. Test on a duplicate theme first.
4. Write the offer copy around the customer, not the discount. See how to write offers that convert.
5. Add a downsell fallback. A cheaper second offer after a decline recovers a meaningful share of rejections.
6. Check mobile. Mobile abandonment runs near 80%. If the offer is cramped or slow on a phone, it costs you money.
7. Measure for 14 days, then add the next placement. Do not launch all four at once — you will not know what worked.

Common upsell mistakes that hurt conversion

• Offering something too expensive. Past roughly 30% of the original item price, abandonment climbs sharply.
• Upselling before add-to-cart when you should upsell after payment. Pre-purchase offers can introduce hesitation; post-purchase offers cannot, because the sale is already captured. See do upsells hurt conversion rate.
• Running multiple upsell apps at once. Cart conflicts, offer fatigue, slower pages, bigger bill.
• Ignoring revenue share. The cheapest app at 100 orders/month is often the most expensive at 2,000.
• Never testing the offer. The product you choose matters more than the app you choose.
• Skipping the downsell. A single fallback offer is the cheapest conversion gain available.

What to look for in a Shopify upsell app

• Placement coverage. How many of the four spots does one install cover?
• Pricing model. Flat fee, revenue share, or usage-based — and what does it cost at 3× your current volume?
• Built for Shopify status. Shopify’s own performance and quality review. A meaningful filter.
• Mobile performance. Where most of your traffic is and where most upsells fail.
• Theme app extension install. No theme file edits means clean uninstalls and no leftover code.
• Analytics. Per-offer revenue attribution, not just a total.
• Markets and multi-currency if you sell internationally.

Frequently Asked Questions

Sources and methodology

Ratings, review counts and pricing verified against live Shopify App Store listings on 1 August 2026. Conversion benchmarks are drawn from aggregate data across stores running upsells with Oxify. Every rating and review count on this page was checked against its live App Store listing on the verification date above; apps whose figures we could not confirm were left off the list rather than estimated.

Changelog: 1 August 2026 — restructured from a linear ranking to placement-based categories; added Essential Upsell & Cross Sell, UpCart, Amplify (formerly PickyStory), iCart and SMART Checkout Rules; re-verified every rating, review count and price against live App Store listings; added “who should avoid it” to every entry.

Final word

Pick the placement before you pick the app. If you can only run one, run post-purchase — it converts highest, works on every plan, and cannot hurt your checkout. If you want the largest total lift, cover all four, and choose a flat-fee app so the cost does not scale with your success.