First, the word: Shopify has apps, not plugins
If you are searching for a Shopify SEO plugin, what you want is a Shopify SEO app. The word plugin comes from WordPress, where you add features to your own copy of the software. Shopify works differently. Your store runs on Shopify's servers, and you add features from the Shopify App Store. Same idea, different name.
The difference matters in one practical way. A WordPress plugin changes your own site. A Shopify app often runs on another company's servers and adds a small piece of code to your pages to talk to them. That is why apps can affect your speed. Our guide to Shopify apps and site speed explains how.
It also matters because a lot of articles about SEO plugins are really about WordPress, and their advice does not carry over. WordPress SEO plugins can edit things Shopify does not allow, such as the structure of your URLs. On Shopify, the platform handles a good deal itself: it generates a sitemap, adds canonical tags and creates a robots file. So an SEO app on Shopify has less to fix than a plugin on WordPress might.
This page is the plain answer to a common question: what can an SEO app do for my store, what can it not, and do I need one? If you would like to compare named apps, our page on Shopify SEO apps compared is the better starting point. If you want to know whether a person is the better buy, see the case for hiring a person instead.
What an SEO app can actually do
Most SEO apps on Shopify do some mix of the following. Few do all of it, and quality varies a lot, so check each claim against the app's listing.
Edit titles and descriptions in bulk. Many apps let you set a pattern across hundreds of products and preview the result. This saves real time on a big catalog.
Add or fill in structured data. Apps can output extra markup for products, reviews, breadcrumbs, FAQs and articles, or fix gaps your theme leaves. See schema markup for Shopify for what that markup does.
Fill in missing alt text. Some apps write alt text for images in bulk, usually from the product name. It is a starting point, not a finished job.
Find broken links and manage redirects. Scanning for error pages and building redirects from a list is tedious by hand and easy for a tool.
Run a site scan. An app can check your pages for missing titles, duplicate descriptions, large images and other common problems, and give you a list.
Compress images. Several apps shrink image files automatically. Compression is useful, but check the cost to page weight, because the app itself may add a script.
Tidy the sitemap or the robots file. Some let you adjust what is shown to crawlers. Most stores never need to.
All of these are mechanical jobs with a right answer or a clear pattern. That is what apps are good at. They save time and reduce the chance of missing something.
What an app cannot do
An app works on the data you have. It cannot add what is missing from your thinking.
It cannot decide what to write. No app knows which questions your customers ask, which products deserve a guide or which collection should be split in two. That takes knowledge of your market.
It cannot write pages worth reading. It can fill a field. It cannot make a product description that is better than the five on the first page of results. That takes real information and some craft.
It cannot earn links or reviews. Those come from people who know your business.
It cannot judge what matters most. A scan might list four hundred issues. A person knows that three of them matter and the rest do not. Without that judgement, you can spend a month fixing things that change nothing.
It cannot make a bad page good. An app that fills in titles on a thin product page produces a thin page with a title.
It cannot promise rankings. Nothing can. Be wary of any app that says it will raise your position or double your traffic.
The scores some apps display are a good example. A score of 92 out of 100 measures whether certain boxes are ticked. It does not measure whether a shopper wants your page. We go deeper into the split of work in our page on Shopify SEO app versus expert, which lays out what to automate and what to decide yourself.
Do you actually need one?
Often not. Shopify's admin already lets you edit titles, descriptions, handles, alt text and redirects, and Shopify handles a lot of the technical side. The diagram shows the two things that decide it: how many products you have to edit, and how much time you have.
A small store with time. Fewer than a hundred products and a few free hours a week. Do it by hand. You will learn the store better, and you avoid adding a script. Our guide to Shopify SEO for small stores sets out the order.
A large catalog with time. Hundreds or thousands of products and a willingness to work through them. A bulk edit app, or the CSV import in Shopify's own admin, saves effort. Try the free route first.
A small store with no time. An app will not solve the time problem, since most of the work is writing. Fix the top ten pages yourself, and consider help for the rest.
A large catalog with no time. This is where an app has the clearest payoff, and where a person should handle the part the app cannot: what to write and where to focus.
A useful test before installing anything: write down the exact job the app will do, then check whether Shopify's own admin or a spreadsheet can do it. If the answer is yes and the job is small, skip the app. Less on the store is a feature.
How to choose one if you do need it
If you have decided an app is worth it, a few checks separate the useful ones from the noisy ones.
Start from the job, not the rating. Name the task first, such as bulk titles or redirect management, and look for apps that do that well. An app that does twelve things is usually good at three.
Read the recent reviews. Look at the most recent ones, particularly the critical ones. Check whether the developer answers, and whether complaints are about the thing you care about.
Check what it adds to your pages. Ask whether it uses an app embed you can switch off, how many files it loads and whether it only runs where needed. Test your speed before and after, on a duplicate theme if you can.
See what happens when you leave. Does it remove its code when uninstalled? Does it keep changes it made to your titles and alt text, or do they disappear? You want changes that stay.
Look for plain pricing. Watch for a free tier that stops at ten products. Add up what you will pay at your catalog size, not the headline price.
Beware big promises. Language like rank number one, guaranteed or double your traffic describes things an app cannot control. Our page on Shopify SEO red flags lists more.
Install one app, give it a month, and measure. Do not stack three SEO apps. They overlap, they can conflict and they add weight.
What you already have for free
Before you pay for anything, use what is there.
Shopify's search engine listing fields. Page title, meta description and URL handle on every product, collection, page and article.
Automatic technical basics. A sitemap, canonical tags in the theme, a robots file and a security certificate. You do not need an app for these.
Redirect tools. The URL redirects section lets you create one at a time, import a list, and export it.
Product CSV import and export. The route for editing SEO fields across hundreds of products in a spreadsheet.
Google Search Console. Free, and the most useful tool you will use. Our Search Console guide for Shopify shows how to connect it.
PageSpeed Insights. Google's free speed test for any page.
Combined, these cover most of what an SEO app does for a store of ordinary size. A free tool used consistently beats a paid one that is installed and forgotten. If you want a checklist to work through with only free tools, try our Shopify SEO checklist.
Mistakes owners make with SEO apps
Four patterns come up often.
Installing it and thinking the job is done. An app is a tool. If nobody decides what to change, nothing changes. A dashboard full of green ticks that nobody opens is not progress.
Auto-generating text at scale. A pattern that writes the same sentence for four hundred product descriptions does not help search or shoppers. Use auto-fill for gaps and hand-write the pages that matter.
Running two tools at once. Two apps that both write structured data can output two versions of the same markup. Pick one, and check the result in Google's Rich Results Test.
Ignoring the cost to the page. An app that adds a half-second to every page has a price, and it is paid by every visitor. Weigh it.
A good habit is to treat each app as a trial. Note why you installed it, what result you expect and when you will review it. At the review, keep it only if the result is there. Many stores have apps installed years ago that nobody can explain. If that sounds familiar, a clear-out is probably worth an afternoon.
Setting up an SEO app safely
If you do install one, a careful setup avoids most of the usual problems.
Back up first. Duplicate your theme and export your products as a CSV. If the app changes titles or descriptions in bulk, you want a copy of the originals.
Start with a preview, not a bulk apply. Most apps show what a change will look like before it is saved. Read twenty of them. If the pattern produces odd results on any, fix the pattern.
Change one thing at a time. Turn on one feature, wait, and look at Search Console and your speed test. If you switch on six at once and something moves, you will not know which one did it.
Check the page source. View the source of a product page and look at the title, the description, the canonical tag and any structured data. Confirm they are what you expect and that nothing is doubled.
Set a review date. Put a date in the calendar a month out. Ask whether the app changed anything you can see.
Treat this as a small experiment. The aim is to learn whether this tool helps your store, and to keep the evidence.
Keep notes as you go: the app name, the date, the settings you chose and the numbers before and after. If you later hand the store to a freelancer or an agency, those notes save them a week of guessing. They also make cancelling easy, because you will know exactly what the app changed and what to undo. Remember to check billing as well. Some apps start on a free trial and move to a monthly charge that is easy to miss, so put the trial end date in your calendar the day you install.
How RunOctopus handles this
RunOctopus is not a plugin or an app you install. It is a done-for-you service. Its AI, Ollie, researches your business, then writes and publishes pages directly on your own website. A team plans, writes, reviews and publishes alongside Ollie. It works with Shopify, WordPress, WooCommerce and Wix.
That means nothing to install, nothing to approve, nothing to upload and nothing to schedule. Pages go live on their own, and no new script is added to your theme. In the first week you get 8 long-form articles, 6 pages and a custom interactive tool built for your niche. After that it is 175+ pieces of content a month, written, published and linked. You also get reports on where ChatGPT, Perplexity, Claude and Gemini name your business.
It covers the part apps cannot, which is deciding what to write and writing it. It does not replace a developer if your theme has a technical fault. To see what Ollie would plan for your store, try the free site read. Paste your address and Ollie reads the site and shows the plan. No account, no call.