What are the must-have Shopify apps?

Most brands benefit from Shopify Flow for automation, Search & Discovery for search and filters, an email and SMS app such as Klaviyo, a reviews app such as Judge.me, and Shopify Subscriptions if products are bought repeatedly. Add others only when they fix a clear gap.

Are Shopify apps free?

Many are. Shopify's own Flow, Search & Discovery and Subscriptions apps are free, and most third-party apps offer a free plan with limits. Paid tiers usually charge monthly, and some charge per order or per contact, so check the pricing section of each listing.

How many apps should a Shopify store have?

There is no limit, but every app can add code to your storefront. Shopify itself advises reviewing apps regularly because too many can slow a store. Keep only apps you actively use and test page speed after each install.

What does Built for Shopify mean?

It is a badge Shopify gives apps that meet its standards for performance, design and integration. It is a useful quality signal when comparing apps, but still read recent reviews and test the app on your store before relying on it.

Which Shopify app connects my store to Amazon?

Shopify's Marketplace Connect syncs products, orders and inventory with Amazon, Walmart, eBay and Target Plus. The first 50 synced orders a month are free, then a 1% fee per order applies, capped at $99 a month according to its listing.

Best Shopify Apps in 2026: 12 Picks by Store Need

What changed: A shortlist of Shopify apps by job, with free tiers and costs
When: Updated October 2026; app pricing changes, check each listing
Who it affects: Shopify brands building or trimming their app stack
What to do: Install Shopify's free apps first, then add paid apps for real gaps

Key takeaways

Start with Shopify's free apps: Flow, Search & Discovery, Subscriptions and Messaging.
Add Klaviyo for email and SMS, Judge.me for reviews and Marketplace Connect for marketplaces.
Fewer, better apps keep the store fast; audit the stack every quarter.

Shortlist by job

	Made by	Free plan	Use it for
Flow	Shopify	Free	Automation
Search & Discovery	Shopify	Free	Search and filters
Klaviyo	Klaviyo	250 profiles	Email and SMS
Judge.me	Judge.me		Reviews
Marketplace Connect	Shopify	50 orders/mo	Amazon, Walmart, eBay

How we chose these Shopify apps

Every app here does a job most growing brands need, has a usable free plan or clear pricing, and comes from Shopify or an established developer. We checked each App Store listing in October 2026. Ratings and prices change, so confirm them on the listing before installing.

Shopify's own blog makes the same point we do: there is no limit on apps, but too many can slow a store, so review installed apps regularly.

Free apps made by Shopify: install these first

Shopify's own apps integrate cleanly with the admin and checkout, and the ones below are free. They replace several paid apps many stores still pay for. Shopify Subscriptions is especially useful for consumables: customers can skip, pause or cancel themselves, and you can offer a subscribe-and-save discount, fixed price or custom pricing on digital and physical products. If you also sell on Amazon, compare it with Amazon Subscribe and Save so your discounts stay consistent across channels.

Shopify Flow: no-code automation with hundreds of templates for tagging, inventory, fraud and fulfillment tasks
Shopify Search & Discovery: search, filters, synonyms, product boosts and recommendations
Shopify Subscriptions: subscribe-and-save, weekly to yearly billing, skip, pause and cancel
Shopify Messaging: email campaigns and automations, with a monthly free email allowance

Best app for email and SMS marketing: Klaviyo

Klaviyo is the most common choice for brands serious about email and SMS. Its listing shows a free plan for up to 250 active profiles and 500 emails a month, with paid email plans from $20 a month and SMS from $15. It connects Shopify data to segments, flows, pop-ups and push notifications.

Watch your active profile count: Klaviyo bills by profiles, and spam sign-ups can push you into a higher tier. Our ecommerce email marketing service sets up the flows that usually pay back first.

Best app for product reviews: Judge.me

Judge.me offers unlimited reviews with photo and video on its free plan, and a paid plan at $15 a month that adds features such as coupons, referrals and AI replies. It carries the Built for Shopify badge, which Shopify awards to apps that meet its standards for performance, design and integration. It can also sync reviews with the Shop app and import reviews from other platforms.

Best app for selling on marketplaces: Marketplace Connect

Shopify's Marketplace Connect syncs products, orders and inventory with Amazon, Walmart, eBay and Target Plus. Its listing shows the first 50 synced orders each month free, then a 1% fee per synced order capped at $99 a month. Some reviews mention sync problems with prices and inventory, so test with a small catalog first.

If you are adding a marketplace, see our guides on how to set up an eBay seller account and Walmart Seller Center.

Best apps for conversion and average order value

Shopify's blog highlights ReConvert for thank-you page upsells, with a free plan, and Stoq for back-in-stock alerts that capture demand when an item sells out. Both are low-risk ways to add revenue without more traffic.

ReConvert: post-purchase upsells and cross-sells
Stoq: back-in-stock and pre-order alerts
Search & Discovery recommendations for related products
Judge.me reviews on product pages for social proof

Best apps for shipping and operations

Easyship compares carrier rates and prints labels, with a free tier for a limited number of shipments a month, according to Shopify's roundup. Stocky handles purchase orders and inventory forecasting for stores on POS Pro. Shopify Flow ties operations together, for example tagging high-risk orders or alerting you when stock runs low.

Best app for social commerce: TikTok

The TikTok app syncs your catalog, creates ads and manages TikTok Shop orders from Shopify. It is free to install; ad spend is billed separately by TikTok. Brands moving into TikTok Shop can read more on our TikTok Shop management page.

How to choose apps without slowing your store

Each app can add scripts to your storefront, and a heavy stack hurts page speed and conversion. Use this short test before installing anything.

Check whether a free Shopify app already does the job
Look for the Built for Shopify badge
Read recent one-star reviews, not just the rating
Confirm what happens to your data if you uninstall
Test page speed before and after installing
Remove apps you no longer use, and their leftover code

Before you install

Free Shopify app does it?
Built for Shopify badge
Recent one-star reviews read
Data export on uninstall
Speed test before and after
Remove unused apps

Where PPC Spider helps

PPC Spider is an Amazon and marketplace agency. Our Shopify and DTC agency team audits app stacks, sets up email, reviews and marketplace sync, and SpiderOS monitors bids, budgets, search terms and stock across Shopify and Amazon. Still deciding on the platform? Read our Shopify pros and cons guide.

Sources

Shopify: The best free Shopify apps (shopify.com/blog/best-shopify-apps)
Shopify App Store: Marketplace Connect (apps.shopify.com/marketplace-connect)
Shopify App Store: Klaviyo Email Marketing and SMS (apps.shopify.com/klaviyo-email-marketing)
Shopify App Store: Judge.me Product Reviews (apps.shopify.com/judgeme)
Shopify App Store: Shopify Flow (apps.shopify.com/flow)

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