Short answer: four. Reviews, email, size guidance, and search or filtering once your catalog passes roughly fifty products. Everything else is optional, and most of it should stay optional until a specific problem forces your hand.
The average Shopify store runs six apps. Most clothing brands we rebuild are running twelve or more, and the majority were installed to fix something the theme should have handled. That is the part worth understanding before you install anything: every app is a recurring bill, and a theme that does more starts fewer of them.
The four that earn their place
1. Reviews
Clothing is bought on trust, and a store with no reviews asks a stranger to guess about fit, fabric, and whether you will actually ship. Reviews with photos do more work than any copy you write.
Judge.me and Loox are the usual picks for small brands, Okendo at larger scale. We run Judge.me on our own store. Free or low-cost tiers exist across all of them, and a free tier is genuinely enough until you are collecting reviews at volume.
2. Email
Email is the only audience you own. It is also the highest-return app category in commerce, and the one most brands set up last.
Shopify Email is built in and free up to a monthly send allowance. Klaviyo costs more and does more, particularly segmentation and flow logic. For a brand's first flows, either works and the writing matters more than the tool. We covered which flows to build first in the email flows every clothing brand needs before Black Friday.
3. Size guidance
This is the apparel-specific one, and it is where fashion stores leak most. A size chart that is accurate, reachable without leaving the product page, and readable on a phone reduces both abandoned carts and returns. Kiwi Sizing and Avada are common choices.
Check your theme first. If it already has a size guide section, which ours do, you do not need an app for this at all.
4. Search and filtering, past about fifty products
Under fifty products, Shopify's native search and collection filters are fine. Past that, shoppers cannot find things, and an app like Boost or Searchanise pays for itself. Installing it at twenty products is paying to solve a problem you do not have yet.
What most clothing brands install and should not
| App type | Why brands install it | What we would do instead |
|---|---|---|
| Page builder | The theme cannot build the layout they want | Buy a theme that can. Page builders are the single most expensive recurring line on most stores, and the pages stop working if you cancel. |
| Popup app | Email capture | Your email platform already does popups. Two tools doing one job is two bills. |
| Currency converter | International customers | Shopify Markets handles multi-currency natively. |
| Trust badge app | Looking legitimate | Badges do not create trust. Real photography, a working contact page, and visible policies do. |
| Upsell app | Raising order value | Reasonable later. Not before you have consistent orders to upsell against. |
| Loyalty app | Repeat purchases | Worth it once you have repeat customers to reward. Not at launch. |
The cost math
App pricing varies and changes, so treat these as shapes rather than quotes. A page builder, a reviews app on a paid tier, a popup tool, a loyalty app and an upsell app land somewhere around $100 a month once you are past free tiers. That is roughly $1,200 a year, recurring, for a stack most brands assembled to patch gaps rather than to grow.
A premium theme is a one-time purchase in the $100 to $400 range. If it removes even two of those subscriptions permanently, it pays for itself inside the first year and keeps paying. We put the full breakdown in what a Shopify theme should cost, and the licensing mechanics in are Shopify themes a one-time purchase.
There is a second cost that does not appear on the invoice. Every app adds scripts to your storefront, and scripts slow it down. When we profiled our own product page, deferring a single heavy element cut mobile load time to roughly a quarter of what it was. A stack of ten apps does that in reverse, quietly, on every page, to every visitor.
What a good theme should already do
Before installing anything, check whether the theme covers it. A theme built for clothing should handle size guides, lookbook and editorial layouts, product galleries that survive eight or more images, colorway swatches, announcement bars, and FAQ or collapsible sections without a single app.
That is deliberately how we built LX at $200 and MX at $100. Both are one-time purchases with free lifetime updates. The LX demo is open with the password ntmdemo if you want to check what is built in before you decide what to install.
A sensible order to install in
Launch with reviews and email only. Add size guidance if your theme does not include it. Add search and filtering when your catalog outgrows native filters. Add anything else only when you can name the specific problem it solves and the number it should move.
If you are getting traffic and no orders, apps are almost never the fix. Why stores get traffic but no sales covers the four causes that usually are.
FAQ
How many apps does a Shopify clothing store need?
Four is enough for most: reviews, email, size guidance, and search or filtering past roughly fifty products. The average Shopify store runs about six. Brands running twelve or more are usually patching theme gaps.
What is the most important Shopify app for a clothing brand?
Reviews, narrowly ahead of email. Clothing is bought on trust and photo reviews answer the fit and fabric questions your product description cannot.
Do I need a page builder app?
Usually no, and it is the most expensive habit in this list. A theme with strong section options covers the same ground with no recurring cost and no risk of pages breaking if you stop paying.
Do I need a size chart app for a clothing store?
Only if your theme does not include size guidance. Many themes built for apparel already do. Check before you install, because this is a common duplicate cost.
Do Shopify apps slow down your store?
Yes. Each app adds scripts that load on your storefront, and the effect compounds. Mobile is where it shows, and mobile is where most fashion traffic arrives.
Is Klaviyo or Shopify Email better for a clothing brand?
Shopify Email is free up to a send allowance and fine for first flows. Klaviyo costs more and offers stronger segmentation and flow logic, which starts mattering as your list grows. The writing matters more than the tool either way.