“AI app” now means two different things on Shopify, and conflating them is how merchants end up paying for a chatbot while an assistant they have never heard of quietly decides not to recommend their store. The first meaning is the familiar one: apps that use a model to write descriptions, personalise a page, answer a support ticket or run search. The second is newer and larger: the assistants themselves — ChatGPT, Perplexity, Google’s AI Mode — reading your catalogue, comparing you with competitors and, increasingly, completing the purchase without the customer ever opening your site.
This guide covers both. First the apps, sorted by the job they do rather than by star rating; then agentic commerce, which is less an app than a channel. We build storefronts AI assistants can read and buy from, and the free AI Visibility Audit shows in a few minutes whether ChatGPT and Perplexity name your store when a customer asks the questions you want to win.
Summary
- Built in: Shopify Magic (copy, images, email) and Sidekick (an assistant for store tasks). Free; use them before paying for the same thing.
- Personalisation: Rebuy for Plus-scale merchandising; LimeSpot as the lighter alternative.
- Support: Gorgias’s AI agent for stores with real ticket volume; Tidio for smaller stores.
- Search and discovery: Searchanise; Klevu at the enterprise end.
- Agentic commerce: not an app. Product data, structured data, llms.txt and Shopify’s own agent integrations decide whether an assistant can find you and check out.
Built in: Shopify Magic and Sidekick
Before installing anything, use what the admin already has. Shopify Magic writes and rewrites product descriptions, generates email subject lines and copy, and edits product images — removing and replacing backgrounds, generating scenes — inside the admin. Sidekick is the assistant layer: ask it to set up a discount, explain a report, draft a policy, find the setting you cannot locate. Neither is a replacement for a copywriter on a brand that has a voice, but for a 300-SKU catalogue with blank descriptions, Magic plus an editor is a week’s work instead of a month’s. Both are free with the plan.
The caution: Magic’s descriptions read like Magic’s descriptions. For a category that needs explaining — a product nobody has searched for, a considered purchase — the copy is the product page, and it needs a human who understands the buyer.
Personalisation and merchandising
Rebuy
Rebuy is the personalisation engine most Shopify Plus stores end up on: AI-driven recommendations in the cart, on product pages and post-purchase, a smart cart with upsells and free-shipping progress, dynamic bundles, and rules that let a merchandiser override the model where the brand knows better. It is priced by order volume and it earns its fee on stores where average order value is the lever. It also injects meaningful JavaScript; measure the cart and product page with the Store Speed Test after installing, and load it after the first paint.
LimeSpot
LimeSpot covers the same ground — recommendations, bundles, upsells — at a lower price and with less depth, which suits stores below Plus scale that want personalised recommendation blocks without a merchandising platform.
Support
Gorgias
Gorgias is the Shopify-native helpdesk, and its AI agent now answers a meaningful share of tickets end to end — order status, returns, product questions — with the Shopify order context in front of it and rules for when to hand off to a person. For a store with real ticket volume, it is the AI app with the clearest payback. Configure it with your actual policies, review its replies weekly for the first month, and keep the hand-off threshold conservative on anything involving money.
Tidio
Tidio pairs live chat with an AI assistant (Lyro) trained on your site content and FAQs, at a price point for smaller stores. It answers the pre-purchase questions — sizing, shipping, ingredients — that a small team cannot staff around the clock. Feed it a clean FAQ and it does well; feed it a contradictory site and it will repeat the contradictions politely.
Search and discovery
Searchanise
Searchanise replaces Shopify’s native search with AI-assisted search and filters: typo tolerance, synonyms, merchandising rules, filters built from metafields, and analytics on what people search and do not find. On a catalogue past a few hundred products it is a straightforward conversion gain, because native search is the weakest part of most themes.
Klevu
Klevu is the enterprise version of the same idea — semantic search, category merchandising, recommendations — for Plus stores with large catalogues and the budget for it. If Searchanise is enough, it is enough; Klevu is for the store where search is a product in its own right.
Quick comparison
| App | Job | Pricing model | Speed cost | Best for |
|---|---|---|---|---|
| Shopify Magic / Sidekick | Copy, images, admin tasks | Free with the plan | None (admin only) | Every store, first |
| Rebuy | Personalisation, smart cart, bundles | By order volume | Medium–high | Plus stores where AOV is the lever |
| LimeSpot | Recommendations, bundles | Tiered | Medium | Stores below Plus scale |
| Gorgias | Helpdesk with AI agent | By tickets / automation | Low (widget) | Real support volume |
| Tidio | Chat with AI assistant | Tiered, by conversations | Low–medium | Smaller stores, pre-purchase questions |
| Searchanise | Search and filters | By products / requests | Low | Catalogues past a few hundred products |
| Klevu | Enterprise search and merchandising | Enterprise | Low–medium | Plus, large catalogues |
Agentic commerce: the part that is not an app
The larger change is happening outside the App Store. Through 2025 and 2026 the assistants became shopping surfaces: OpenAI’s Instant Checkout, built on the Agentic Commerce Protocol with Stripe, lets ChatGPT complete a purchase from a merchant’s catalogue, with Shopify merchants among the first eligible; Perplexity shows and buys products from Shopify catalogues; Google’s AI Mode carries its own agentic checkout. Shopify’s side of this — the catalogue and checkout integrations that make a store agent-ready — is opt-in and runs through Shopify itself, not a third-party app.
What decides whether an agent recommends and buys from your store is unglamorous:
- Product data an agent can trust. Complete titles, real descriptions, accurate variants, availability, shipping and returns stated in structured form. An agent will not recommend a product whose size chart is an image.
- Structured data on every page. Product, Offer, Review, Organization and FAQ schema, consistent with the visible page. The same work that earns Google’s rich results.
- A readable site. Server-rendered content, an
llms.txtthat tells assistants what the store is and where the important pages are, and no content locked behind JavaScript widgets. - Citations. Assistants name stores that other pages name. Being cited in comparisons and guides — the SEO & GEO work — is now visibility in two channels at once.
- The commerce integrations switched on. Shopify’s agent-facing catalogue and checkout features, enabled and verified, so that when an assistant wants to buy, it can.
The test is simple: ask ChatGPT and Perplexity the questions your customers ask — “best wireless dog fence for a large garden in Ireland”, “HD lace wig under $300” — and see who gets named. The AI Visibility Audit does this systematically and lists the gaps. For most stores the first finding is that the assistants have never heard of them.
AI tooling behind the store
The other place AI earns its keep is off the storefront entirely. CocoLash’s private image studio composes a prompt from the brand profile — lash style, skin tone, scene, season — generates campaign imagery, builds before/after composites and places the logo automatically, so the team gets on-brand product and lifestyle images without a shoot. That is a custom internal tool, not an app, and it is the pattern for AI in a brand: a narrow job, the brand’s own data, a human choosing the output.
What to install, in order
- Use Magic and Sidekick for the blank descriptions and the admin chores. Free.
- Fix the product data and structured data; run the free SEO audit to see what Google — and therefore the agents — can read.
- Add search (Searchanise) if the catalogue is past a few hundred products.
- Add support AI (Gorgias or Tidio) when ticket volume justifies it, with conservative hand-off rules.
- Add personalisation (Rebuy or LimeSpot) when AOV is the lever, and measure the speed cost.
- Switch on Shopify’s agentic commerce integrations and re-run the AI Visibility Audit quarterly.
FAQ
What is the best AI app for Shopify?
There is no single one, because they do different jobs. Shopify Magic and Sidekick are built in and cover copy and store tasks; Rebuy is the personalisation engine most Plus stores use; Gorgias’s AI agent handles support; Searchanise or Klevu handle search. The bigger question in 2026 is whether AI assistants can find and buy from your store at all.
Can customers buy from my Shopify store inside ChatGPT?
Agentic checkout — ChatGPT completing a purchase from a merchant’s catalogue through the Agentic Commerce Protocol with Stripe — rolled out from late 2025, with Shopify merchants among the first eligible, and Perplexity and Google have their own shopping agents. Eligibility runs through Shopify’s own integrations, and your product data has to be clean enough for an agent to trust it.
How do I know if ChatGPT recommends my store?
Ask it, and Perplexity, the questions a customer would ask, and see who gets named. Our free AI Visibility Audit does this systematically and shows the structured data, llms.txt and content gaps that keep a store out of the answers.
Do AI apps slow down a Shopify store?
Personalisation and chat apps inject scripts on every page and can cost 200–500 ms of Largest Contentful Paint on a phone. Load them after the first paint, keep one of each kind, and measure with the free Store Speed Test before and after.
