Run a mobile UX audit. Prioritize fixes by impact on mobile conversion.
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Run a mobile UX audit on my store. Check tap target sizes, font legibility, viewport handling, friction points on PDP, and add-to-cart flow. Prioritize by impact on mobile conversion.
- Tests in real mobile viewports (iPhone, Android).
- Checks tap targets (44px+), font sizes (16px+), and viewport handling.
- Traces friction in PDP and cart flow.
- Prioritized by impact on mobile-specific conversion.
What you're trying to do
Most Shopify traffic is mobile, but most stores were designed desktop-first. A mobile UX audit finds the small frictions that add up: too-small tap targets, fonts that need pinch-to-zoom, filters buried in inline UI, missing sticky CTAs. Each fix is small, and Fudge compares mobile conversion before and after you ship them.
Things to watch out for
- Tap target size: Apple recommends 44×44pt; Google 48×48dp. Fudge uses 44px minimum.
- Font sizes: 16px minimum on form fields to avoid iOS auto-zoom, and readable body text.
- Sticky elements: Fudge identifies missing sticky CTAs.
- Funnel coverage: the audit covers the homepage, collection pages, product pages and cart.
How Fudge does it
Fudge runs the audit on your live store without changing anything, and ranks what it finds by impact. Ask it to fix an item and it drafts the change in your theme for you to preview and publish.
Why mobile UX audits surface bugs desktop never reveals
Most Shopify traffic is mobile, but mobile UX failures are much harder to catch in dev workflows. Most teams build and test on desktop, then deploy to mobile and miss the tap-target failures, the font legibility issues, the friction-point cascades that don’t appear on desktop.
When to run this audit
Run the mobile UX audit if you haven’t tested mobile rigorously in 3+ months, or after any meaningful theme change. Especially worth doing if the gap between your mobile and desktop conversion rates is wider than usual.
The audit walks the actual shopper journey from homepage to cart on a real device emulator and surfaces what breaks.
What makes a great audit
- Tap target sizes — 44px+ for primary actions, per Apple/Material guidelines. Smaller targets cost conversion.
- Font legibility — minimum 16px body text. Smaller fonts cost conversion and accessibility.
- Viewport handling — no horizontal scroll, no zoom-required interactions.
- Friction points on PDP — variant selectors, quantity steppers, add-to-cart flow.
- Add-to-cart flow — cart drawer behavior, checkout reachability, persistent cart visibility.
- Prioritized by mobile-conversion impact — not by count.
Common mistakes to avoid
The biggest mistake is auditing on a high-end iPhone. Real-world mobile users have mid-range Android devices with slower processors and smaller screens. Test on a wider range of devices.
The second mistake is missing the network reality. Mobile users often have spotty connections. Lab tests with full 5G don’t reveal the bail-rate from slow-loading pages on slow connections.
Pair this with core web vitals audit and CRO audit — three complementary audits covering performance, conversion, and mobile-specific experience.
Fudge runs this audit as part of its conversion rate optimization work.