Addy 
Addly 
Goalify 
Monet 
Reviso 
Key takeaways
- A theme finder reads the theme the store was published from, not the label in the theme editor. “Holiday 2026” can still be Dawn or Impulse.
- You get the name, whether it is a Theme Store theme or custom, and the listing when one exists.
- Homepage, collection or product URL all work if the page is public. Product URLs help when the homepage is a campaign landing page.
- The theme is one layer. Apps, photos and the offer usually explain more of the gap than the theme file.
- Do not switch themes because a competitor looks sharper. Check their product page first.
When a competitor’s Shopify store looks faster, cleaner or more expensive than yours, the theme is usually part of the story — and usually a smaller part than it feels.
A Shopify theme detector tells you which theme sits behind the storefront: Dawn, Impulse, Prestige, Symmetry, Motion, Warehouse, or another Theme Store theme, or a custom / headless build. It reads the theme the shop was published from, not the nickname in Online Store → Themes. A copy labelled “Live v3” can still be Impulse.
You get the real name, whether you can buy it, and the Theme Store listing when there is one. That is the difference between buying the same starting point and hiring someone to rebuild it.
Why the editor name lies
Shopify lets merchants duplicate a theme and rename the copy. Holiday campaigns, Black Friday drafts and “Main — do not touch” are normal. Viewing page source sometimes shows an asset path, but agencies strip labels and renamed copies confuse a quick search.
The finder resolves the published origin. That is what you came for.
Headless (a storefront not using a normal Shopify theme — often Hydrogen) will not return a Theme Store name. That result is still useful. It usually means a bigger team and a bigger budget. You compete on offer and speed-to-test, not on matching their custom front end.
How to run it
- Paste a public URL. Home, collection or product all work.
- Read the theme name and the Theme Store versus custom line.
- Open the listing if there is one. Preview the demo.
- Compare the demo with the live store. Most of the gap is sections, photography and apps.
They will not know you looked. Password-protected stores will not resolve.
If the homepage is a splash page (a single campaign screen), paste a product URL from the same shop. Campaign landing pages sometimes use a different template.
Theme versus everything else
A theme sets the layout, the default cart behaviour and a speed baseline. It does not set the offer, the photos, the review widget or the ad that sent the click.
Two Impulse stores can convert differently because one has a clear price and one hides it, or because one opens a cart drawer and one dumps the shopper on /cart.
So after the name:
- App detector on the same URL — reviews, pop-up, cart, subscriptions.
- CRO Audit for Shopify stores on the product they advertise — can a stranger buy.
- Ads spy — what they pay to say.
- Product exporter — the price behind the look.
If you are still choosing a product, the winning products board is the demand check. A pretty theme on a SKU you cannot ship is still a pretty theme.
Should you switch
Switch when the layout is the gap: your theme fights add-to-cart, cannot place a cart drawer, or is so slow that the first image is late. Buy the same Theme Store theme they use if the demo already does the job you need.
Stay when the gap is photos, reviews, the offer or the ads. Installing Prestige will not write a delivery sentence or add a bundle under the button.
Our apps sit on top of almost any modern theme as theme app extensions (they load in the theme editor, no theme.liquid edits): Addy for the drawer, Addly for product-page offers, Goalify for the bar. You do not need their theme to add those jobs.
A worked pass (example)
You paste a competitor homepage. The finder says Impulse, Theme Store, and links the listing.
The Impulse demo is a clean fashion layout. Their live shop looks richer because of photography and a review app, not because they rewrote the theme. The app detector shows Judge.me and a cart drawer. The CRO audit on their bestseller passes the buy path.
Your note: you can stay on Dawn, add reviews and a drawer, and spend the theme budget on photos. Or you buy Impulse because you already wanted its collection layout. Either way you decided on a reason, not a feeling.
Mistakes
Treating “custom” as “better.” Custom can mean an agency, or a mess. Audit the product page.
Copying the theme and the apps in one weekend. One change at a time, or you will not know what moved the number.
Reading view-source and stopping. Paths lie. The finder exists because they lie.
Switching themes the week you scale ads. Theme swaps move selectors. Recrawl the landing URL before you raise budget.
What “Dawn” versus a paid theme actually changes
Dawn is Shopify’s free reference theme. It is fast, plain and easy to extend with app embeds. Impulse, Prestige, Symmetry, Motion and Warehouse are paid starting points with denser sections: lookbooks, more product-card styles, sometimes a different cart.
None of that replaces a price, a photo or a review. A paid theme can still ship a weak add-to-cart. Dawn can still sell a clear product.
When the finder says Dawn, do not treat that as “they are cheap.” Treat it as “they spent the budget on photos and apps.” When it says Prestige, do not treat that as “they convert.” Treat it as “they bought a fashion layout.” Then audit the PDP.
Headless / Hydrogen means the HTML is not a normal theme. Your theme finder result stops at “not a Theme Store theme.” Compete on shipping promise and offer. You will not out-engineer their front end this quarter.
A theme switch checklist (only if you still want one)
- Audit the current bestseller. Save the score and the ranked misses.
- Duplicate the live theme. Never edit live.
- Install the new theme as a draft. Add the same app embeds: drawer, bar, reviews.
- Preview the bestseller. Can you still add to cart on a phone?
- Check the cart: drawer or
/cart, shipping goal, checkout button. - Publish at a quiet hour. Recrawl the same URL.
- Leave ads at the current budget for two days. Then decide.
If step 4 fails, stay on the old theme. A prettier collection grid is not worth a dead buy button.
This week
- Paste the competitor you actually lose to into the theme finder.
- Open the listing if it exists. Compare demo and live.
- Detect apps on a product URL. Audit that URL.
- Write one sentence: “The gap is theme / apps / offer / ads.”
- Change that one thing.
You now know the starting file. You also know whether it is worth buying.
Sections versus the theme file
What you like on their homepage is often a section (a drag-and-drop block in the theme editor): a slideshow, a lookbook, a video. Paid themes ship more of those blocks. You can add a similar section on Dawn with an app or a small custom section without paying for the whole theme.
Walk their homepage and name each band: announcement, hero, social proof, bestsellers, story, footer. Write which of those you are missing. Fill the missing band. That is cheaper than a theme swap and easier to undo.
Product templates matter more than the homepage. Open their bestseller and yours. Same order: gallery, title, price, variants, add-to-cart, offer, reviews, description. If your offer sits below a long story and theirs sits under the button, move yours. You did not need Prestige for that.
Speed: a heavy slider on a paid theme can lose to a static Dawn hero. After any change, load the PDP on a phone with a cold cache. If the buy button is late, the theme did not help.
Agency “custom” that is still a Theme Store theme
Some agencies start from Impulse, rename the copy, and call the project custom. The finder should still say Impulse. Believe the finder. You can buy the same start and hire someone for sections only.
If the finder says custom and the HTML still looks like Dawn (plain product cards, default cart), they may have forked Dawn and stripped the name. You can still stay on Dawn. Do not hire a rebuild because the word “custom” appeared once.
You now have a reason to buy a theme, or a reason not to. Either one is a finished decision.
If you do buy, buy the listing the finder linked and keep the first week on a draft. The Theme Store demo is empty. Your products, photos and apps are the real preview. A draft that cannot add to cart on a phone is not ready to publish, no matter how close the homepage looks to theirs. Preview the bestseller, a collection and the cart — not only the homepage they styled for the launch screenshot.
Frequently asked questions
How do I find out what Shopify theme a website is using?
Paste the store URL into a Shopify theme detector. You get the theme name, whether it comes from the Theme Store, and a link to the listing when there is one.
Can I see a competitor’s theme if they renamed it?
Yes. The finder reads the theme the store was built from, so a renamed Dawn or Impulse still shows as Dawn or Impulse.
What does custom Shopify theme mean?
The storefront was not built from a Theme Store theme you can buy. An agency built it, or the store runs a headless setup such as Hydrogen.
Does knowing the theme tell me why they convert better?
Not on its own. Two stores on the same theme can convert very differently. Audit the product page and look at the ads they send to it.
Will the store owner know I checked their theme?
No. The finder reads the public page the way a browser does. It does not log in or install anything.
Can I check a theme from a product page URL?
Yes. Homepage, collection or product URL all work. Use a product URL when the homepage is a campaign page.
Should I switch my store to a competitor’s theme?
Only if their product page also sells and the layout is the actual gap. Leave the theme when the gap is the offer, the photos or the ads.
