Published May 2026 · Reviewed by the Libautech team. Builders of Bundles & Upsell, Smart Upsell, Sticky Add to Cart, and 7 other Built for Shopify apps used by 5,000+ merchants across 50+ countries.
Libautech AI Post Purchase is live on the Shopify App Store. It is a post-purchase upsell app where Claude does the work. Reads your catalog, picks the trigger product, picks the upsell, sets the discount, and runs the offer on the page that appears after checkout. The customer accepts with one click. No second checkout. No re-entering payment.
The mechanic is the same as every post-purchase upsell app on Shopify. The difference is who builds the offers. On AfterSell, ReConvert, and Zipify OneClickUpsell, the merchant configures rules per product combination, like "if customer buys X, recommend Y at 15% off, exclude Z." On large catalogs that quickly becomes hundreds of rules to write and maintain. On Libautech AI Post Purchase, you click Generate. Claude reads the catalog and writes the rules.
The app is free. There is no subscription, no per-order fee, no revenue share. We built it to be the easiest entry point to post-purchase upselling on the Shopify App Store. Stores testing post-purchase for the first time should not need to commit to a $30+/month subscription before they have data on whether the surface converts for their catalog.
Post-purchase upsell rules are not interesting work. For a 200-product catalog, it is roughly 600-800 if-then rules a human merchant has to write, validate, and update every time the catalog changes. Most merchants either skip post-purchase entirely or run a single generic "10% off your next order" offer that converts at 2-3% and never improves.
The acceptance rate gap between generic offers and product-matched offers is the entire game. Generic post-purchase offers convert at 2-4%. Genuinely relevant complementary product offers, matched to what was just ordered, the customer's segment, and the product category, convert at 8-15%. The work that produces that gap is rule-writing, and rule-writing is exactly the kind of work an LLM does well.
Claude reads each order on the post-purchase page. Claude already knows what the customer bought, what is in your catalog, what your eligibility settings allow, and what your discount levels are. Claude picks the upsell that fits and shows it. The merchant decides what catalog Claude can pull from and what discount levels are acceptable. Claude handles the per-order decision.
The full setup takes about 90 seconds. There are two steps and the second one is one click.
Inside your Shopify admin, go to Settings → Checkout. Scroll down to the Post-purchase page section. Select Libautech AI Post Purchase as the post-purchase app and save. This step makes sure the extension actually fires after checkout. Without it, no offer ever shows.
One thing worth flagging: the post-purchase upsell only shows on credit card and Shopify Pay orders. Customers who pay with PayPal, Apple Pay (in some configurations), Klarna, or other express checkout methods skip the post-purchase page entirely. This is a Shopify platform constraint that applies to every post-purchase app, not a Libautech limitation. For most stores, credit card and Shopify Pay cover 70-85% of orders.
Open the Libautech AI Post Purchase app inside your Shopify admin. You will see a Generate button on the dashboard. Click it. Claude reads your catalog, picks eligible products, sets discount logic, and creates a set of post-purchase offers covering your catalog. Generation takes a few minutes for large catalogs. The app shows progress while Claude is working.
Once generation finishes, your offers are live. Customers placing orders will see Claude-generated upsells on the post-purchase page, accept or decline with one click, and the accepted offer adds to the original order without a second checkout. The dashboard shows performance per offer (acceptance rate, revenue contribution, decline rate) so you can see what is working.
Setup is two steps. What happens after setup is where Claude continues working.
Claude reviews performance weekly. The dashboard shows which offers are converting well, which are flat, and which are underperforming. Claude reads that data, suggests discount adjustments on offers that are close to converting, edits offers that need stronger product matching, and generates new offers as your catalog grows. The merchant approves changes; Claude does not edit live offers without approval.
For large catalogs, Claude continues generating offers in the background after the initial pass. A 500-product catalog produces hundreds of valid post-purchase pairings. Claude does not generate all of them in the first run because most stores only need 30-50 active offers at any time. As performance data builds, Claude rotates new offers in to test against existing ones.
If you prefer manual control, the manual offer creation flow is still available. Click Create Offer, pick the trigger product, pick the upsell, set the discount, save. You can run the app entirely on manual offers if that fits your workflow. Most merchants run a hybrid. Claude generates the bulk of the catalog coverage and manual offers handle specific high-margin products where the merchant wants exact control.
The post-purchase upsell category on the Shopify App Store has three established paid leaders: AfterSell (4.9/5, 14,000+ reviews, from $34.99/month), ReConvert (4.9/5, 5,500+ reviews, revenue-tiered), and Zipify OneClickUpsell (4.7/5, 2,500+ reviews, from $34.92/month). All three are mature, well-supported, and built on Shopify Checkout Extensibility. None of them are wrong picks for stores that need their specific feature depth.
The differences worth knowing:
AfterSell covers the entire post-checkout funnel: pre-purchase order bumps on Plus, post-purchase one-click upsells, thank-you page upsells with reviews and FAQs embedded, customer retention nudges. Stores running serious post-checkout operations across all four surfaces are the right fit. The $34.99/month entry tier reflects that depth.
ReConvert specializes in thank-you page customization: drag-and-drop editor, birthday collection, order tracking widgets, cross-sell bundles, and post-purchase upsells from one configured flow. Revenue-tiered pricing scales with upsell revenue generated; high-AOV stores can end up paying $50-200/month after the entry tier.
Zipify OneClickUpsell is the multi-step funnel specialist. Stores running "if accepted offer 1, show offer 2; if declined, show downsell offer 3" sequences need Zipify's funnel logic, which is deeper than AfterSell or ReConvert on this specific pattern.
Libautech AI Post Purchase is the simplest of the four. Free, AI-driven offer generation, single-step post-purchase upsells, native Checkout Extensibility build. The trade-off is feature depth. The app does not (yet) cover thank-you page customization, multi-step funnels, or Plus checkout extensions. For stores testing post-purchase for the first time, or for stores where the simplicity is the feature, the trade-off works in our favor. Stores that validate genuine post-purchase conversion lift and then need deeper features can graduate to AfterSell or ReConvert later.
Post-purchase upsell does not compete with pre-purchase upsell. The two compound. Pre-purchase upsells (product-page recommendations, cart drawer offers, frequently-bought-together bundles) capture AOV lift before checkout. Post-purchase upsells capture AOV lift after checkout. The same customer sees offers at two different decision moments, and stores running both well typically see 15-25% AOV lift compared to 5-10% AOV lift from running only one.
Our recommended stack for most Shopify stores: Libautech Bundles & Upsell at $14.99/month for product-page upsells, cart drawer offers, frequently-bought-together bundles, and free-gift logic. This covers the pre-purchase and cart conversion layers. Plus Libautech AI Post Purchase (free) for the post-checkout upsell layer. Total subscription cost $14.99/month for the full conversion stack across pre-purchase, cart, and post-purchase. AOV lift compounds across both layers because they target different stages of the same customer journey.
Stores wanting to cover announcement bars and sticky add-to-cart on top can move to the Libautech Package plan at $9.99/month, which includes Bundles & Upsell, Sticky Add to Cart, Announcement Bar, Currency Converter, Shoppable Videos UGC, and Amazon Buy Button. Six apps for less than most single-app subscriptions. Adding the free Libautech AI Post Purchase on top covers the post-checkout layer at no additional cost.
The current version is the foundation. The roadmap covers four areas where the app is currently lighter than mature competitors and where merchant feedback in the first weeks since launch has pointed clearly.
A/B testing. Right now Claude improves offers based on performance data, but there is no formal A/B testing framework where merchants can run controlled experiments between two offer variants. Adding this is the next major release.
Thank-you page customization. The post-purchase page is one surface. The thank-you page (the order confirmation page itself) is a separate surface where ReConvert competes hardest. We are evaluating whether to add thank-you page customization inside Libautech AI Post Purchase or in a separate app.
Multi-step funnels. Single-offer post-purchase covers most stores' needs, but merchants running specific high-AOV product categories (electronics, supplements, fashion) sometimes need multi-step logic. We will add this if the data shows clear demand.
Deeper merchant control over Claude's reasoning. Right now Claude picks offers automatically. Some merchants want to see why: what trigger product, what upsell, what discount, and what reasoning Claude used. Surfacing the reasoning is on the roadmap.
The app is free, the setup is two clicks, and the AI-driven offer generation handles the work that would otherwise take days of rule-writing for stores with serious catalogs. Install Libautech AI Post Purchase on the Shopify App Store, click Generate, and let Claude run your post-purchase upsells.
If you have feedback after running the app for a few weeks, what worked, what missed, what feature would change your install decision, email us at support@libautech.com. We are reading every reply in the launch window and the roadmap above will move based on what we hear.
