| Check | What a phone-only leak looks like | Cheapest fix |
|---|---|---|
| 1. Same visitors on both? | The gap only shows on paid social traffic | Compare mobile and desktop within each source |
| 2. Your own ad, on your phone | The page opens inside Instagram, no Apple Pay at checkout | Tap your ad and buy, then fix placements or wallets |
| 3. What covers the product | Cookie banner, email pop-up and chat stacked on the photo | One small banner instead of a full-screen pop-up |
| 4. Is Add to cart in reach | The button scrolls away under the description | Keep it on screen as people scroll |
| 5. Do wallets show | No Apple Pay, Google Pay or Shop Pay next to Add to cart | Activate them in payment settings, test on both phones |
| 6. How heavy is the page | The first photo takes seconds on cellular | Smaller images, fewer apps |
How big a gap is normal?
It depends whose data you read, and the range is wide:
| Source | What it covers | Mobile vs desktop |
|---|---|---|
| Contentsquare, 2026 benchmark | 99 billion sessions, 6,500+ sites, 9 industries, Q4 2025 | Desktop converts 74% higher |
| Littledata | About 420 Shopify stores, July to October 2026 | Median 1.5% on both. Top 10%: 4.0% mobile, 5.1% desktop |
| Dynamic Yield | Its client sites, last 12 months | Mobile 2.86%, desktop 2.23% |
Sources: Contentsquare, Littledata mobile and desktop, Dynamic Yield.
Desktop converting 74% higher puts mobile at a bit over half the desktop rate. On Shopify, the median store sees no gap at all. So I'd read your numbers like this: mobile anywhere between half of desktop and level with it is inside the benchmarks. Under half is worse than all of them. And a gap that widened on one date is a leak whatever its size, because habits don't change overnight.
Part of the gap is just how people shop. Someone browses on the phone at lunch and buys on the laptop that evening. Sessions are counted per browser, so that's a mobile session with no order and a desktop session with one.
It matters because phones bring most of the traffic: 69.9% across Contentsquare's sites, 68% for the median Shopify store (Littledata). In the UK they took 61.4% of ecommerce sales in September 2026 (IRP Commerce). Benchmarks by category are in what's a good Shopify conversion rate.
What to check, in order
1. Are the same people on both devices?
Mobile and desktop rarely get the same traffic. Instagram and TikTok ads reach people inside a phone app. People who come back from an email or type in your address are often returning customers, who convert better on any device. Store-wide, you may be comparing ad traffic with loyal customers.
So compare within a source. In Shopify's reports, device type and referrer source are both session dimensions (ShopifyQL sessions schema), so you can put mobile and desktop side by side for Google search, for email and for each paid channel. If the gap disappears inside every source, you don't have a mobile problem. You have a traffic mix. If it stays, keep going.
2. Tap your own ad on an iPhone
A tap on an Instagram or Facebook ad opens your page inside the app's own browser, and that visit counts as a mobile session. Two things happen there that drag the mobile rate down and never touch desktop.
The checkout can lose Apple Pay. Apple disables Apple Pay in any in-app web view where the host app injects its own scripts (Safari 13 release notes), and the Instagram iOS app was shown to inject scripts in 2022 (Felix Krause). Merchants have reported Apple Pay and Google Pay missing for visitors from Instagram and Facebook (Shopify Community). Apps change, so tap your own ad, go all the way to checkout and see which buttons appear. Meta ads getting clicks but no sales walks through that test step by step.
Reels and Stories also bring accidental visits. They're full-screen placements people swipe with a thumb, and a slip opens your page. A Meta campaign we ran for anry.io filled up with exactly these thumb slips, phone visits that never moved past the first screen (the full numbers). Each of those is a mobile session with no order. The fix is the placement setting in Ads Manager.
3. Count what covers the product
On a laptop the cookie banner, the email pop-up, the chat bubble and the promo bar sit around the edges. On a phone they pile up on top of the product.
Google's guidance is plain: don't cover the whole page with an interstitial, and use banners that take only a small fraction of the screen (Google Search Central). Baymard advises against live chat overlays in general and says to be careful with any sticky chat element on mobile (Baymard).
Open your top landing page on a phone and count the taps before you see the photo and the price. More than one is too many.
4. Keep Add to cart in reach
On desktop the button sits beside the photos the whole time. On a phone it sits above a long column of description, reviews and recommendations, so the moment someone scrolls down to read, it's gone. A sticky add to cart bar brings it back. Baymard's one caution: give it white space, and don't make it a full-width button (Baymard).
Shopify shows its accelerated checkout buttons next to Add to cart (Shopify Help), so the one-tap payment buttons scroll away with it.
5. Check the wallets show on real phones
Typing a card number and an address on a phone keyboard is the slowest part of a mobile checkout. Wallets skip it. Which buttons Shopify shows depends on the shopper's browser, device and payment history, and on what you've activated in your payment settings (Shopify Help). So test on an iPhone in Safari and on an Android phone in Chrome, not on your laptop.
Shopify says Shop Pay can lift conversion by as much as 50% compared to guest checkout, citing a consulting firm it doesn't name (Shopify). That's a vendor's claim. Baymard's survey is neutral: 9% of US shoppers who abandoned a checkout said there weren't enough payment methods (Baymard).
6. Weigh the images
It's last because it's the most work. The median mobile home page carries 911 KB of images, more than its JavaScript (HTTP Archive Web Almanac 2025). On cellular data, that's the wait before the first photo appears. In a study Google commissioned from 55 and Deloitte, a 0.1-second improvement in mobile site speed came with 8.4% more conversions for retail sites (37 brand sites, more than 30 million sessions) (web.dev).
One blind spot: Shopify's web performance report doesn't include Safari. It collects real-visitor data from Chromium browsers and Firefox only, because Core Web Vitals are a Google product Safari doesn't support yet (Shopify Help). Shopify says the data still reflects your visitors' experience. If most of your mobile shoppers are on iPhones, open the store on one, on cellular, and time the first photo yourself.
Is it the ads or the site?
Go back to the split from check 1. If the mobile gap only shows on Meta or TikTok traffic, start with the ad: placements, the in-app browser, and whether the creative promises what the page shows. If mobile also lags on Google search and email, the site is harder to use on a phone, and checks 3 to 6 are where the money is.
Where Anry fits
Anry pairs every Meta or Google ad click with the visit that followed and any order that came of it, then breaks the leaks down by page, device and ad. Each one carries a price taken from your store's own orders, so "mobile converts worse" turns into a specific page or ad and what it's costing. It runs as a read-only MCP server in Claude, Claude Code or Cursor, and the suggested fix goes to your own agent to make.
If your mobile rate already sits inside the range above and you don't buy social ads, you don't need it. Sessions by device and your own phone will do.
Frequently asked questions
What is a good mobile conversion rate for a Shopify store?
Littledata puts the median Shopify store at 1.5% on mobile, the top 20% at 2.9% and the top 10% at 4.0% (421 stores, July to October 2026). What you sell moves it a lot.
Why is my mobile conversion rate so much lower than desktop?
Some of it is normal, since people browse on phones and buy later on a laptop. A gap far bigger than the benchmarks, or one that grew suddenly, usually means something phone-only: pop-ups over the product, a button out of reach, missing wallets or ads sending accidental taps.
Does Apple Pay work in the Instagram browser?
Not reliably. Apple turns Apple Pay off in in-app browsers that inject scripts, and Instagram's iOS app was shown to inject scripts in 2022. Tap your own ad on an iPhone and go to checkout to see what your shoppers see.
Why doesn't Shopify's web performance report show Safari?
Core Web Vitals are a Google product, available in Chromium browsers and Firefox only, so Safari visitors aren't in the report. Shopify expects two of the metrics, LCP and INP, to arrive in a future Safari version.
Sources
- 2026 Digital Experience Benchmark, conversions, Contentsquare
- Ecommerce conversion rate, mobile and desktop, and mobile traffic share, Littledata, October 2026
- Conversion rate benchmarks, Dynamic Yield
- Ecommerce market data, IRP Commerce, September 2026
- Safari 13 release notes, Apple
- Instagram and Facebook can track anything you do on any website in their in-app browser, Felix Krause, August 2022
- Apple Pay/G Pay not available when clicked through from Instagram or Facebook, Shopify Community
- Avoid intrusive interstitials and dialogs, Google Search Central
- Ecommerce UX best practices and cart abandonment rate statistics, Baymard Institute
- Accelerated checkout buttons and web performance reports, Shopify Help Center
- Shopify Checkout, Shopify
- Page weight, HTTP Archive Web Almanac 2025
- Milliseconds make millions, web.dev
- Sessions schema, ShopifyQL docs
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