Shopify app
Find and fix accessibility barriers in your Shopify store
Valence Metrics automatically checks four key pages of your buying journey (home, collection, product page, cart) in a mobile browser view, explains every finding in plain language and fixes missing product image alt text directly in your store. No overlay widget.
Free plan available. Pro with a 7-day free trial.
Why it matters
5,000+
digital accessibility lawsuits were filed in the US in 2025, most of them against online stores. Source: UsableNet
2025
The European Accessibility Act has applied to many online shops selling to consumers in the EU since 28 June 2025. Microenterprises providing services are exempt. Source: European Commission
76%
of the independent boutique websites we scanned had at least one barrier that can block screen-reader or keyboard users.
Own sample, not representative: 78 boutique websites from a Google Maps search in Miami, scanned automatically with axe-core in a mobile view (home page plus up to one more page), September 2026. Counted: at least one finding of a rule that blocks screen-reader or keyboard users.
How it works
Install and scan
Valence Metrics opens your home page, a collection, a product page and the cart in a mobile browser and checks them with the open-source axe-core engine.
Understand every issue
Each finding shows where it is, how serious it is and how to fix it in Shopify: in your admin or in your theme code.
Fix alt text in bulk
Missing product image descriptions get a suggestion you can edit. One click saves them on the images, so they work in every theme. Every change can be undone for 90 days.
Stay on top of changes
Theme updates and new apps can add new barriers. Pro scans your store every week.
Fixes at the source instead of an overlay
Overlay widgets add a script on top of your store. Valence Metrics shows you what to fix and fixes store data at the source.
| Feature | Typical overlay widget | Valence Metrics |
|---|---|---|
| Adds a script to your storefront | Yes | No |
| Changes your store data | No, it patches the page in the browser | Yes, alt text is saved on your product images after you confirm |
| Shows where each issue is | Varies | Yes, with page, element and a Shopify-specific fix guide |
| Theme code issues | Usually not addressed by the overlay | Explained step by step for you or your developer |
Pricing
Free
$0
- One scan every 30 days
- Top 3 issues with fix guide
- Alt text for 10 images every 30 days
- Undo for every alt text change
Pro 7-day free trial
$19 / month
or $190 / year (2 months free)
- Unlimited scans
- All issues with fix guides
- Weekly monitoring
- Bulk alt text without limits
- Undo for every alt text change
All prices in USD, excluding applicable taxes (e.g. VAT). For businesses only, not for consumers. Billed through Shopify. After the 7-day trial, Pro is billed at $19/month (or $190/year, billed upfront for 12 months) unless you uninstall before. Cancel any time by uninstalling the app.
Questions
Will Valence Metrics make my store ADA or WCAG compliant?
No tool can promise that. Automated checks find only part of all accessibility barriers. Valence Metrics finds many common technical ones, helps you fix them and watches for new ones. For full conformance, also test with real users and assistive technology.
Does Valence Metrics change my theme?
No. Theme issues come with a step-by-step guide for you or your developer. Valence Metrics only changes store data, such as image alt text, after you review and confirm it.
Does Valence Metrics access my customers' data?
No. Valence Metrics reads your public storefront pages and your product data. It does not access orders or customer information. Privacy policy
Do I need a developer?
Alt text and many admin settings you can fix yourself. Some theme issues need small code changes; the fix guide is written so you can forward it to your developer.
What happens when I uninstall?
Billing stops. Your store's data in Valence Metrics is deleted when Shopify sends the deletion request, 48 hours after uninstalling.
Is this legal advice?
No. Valence Metrics is a technical tool. For legal questions, talk to a lawyer.
Automated testing detects only a portion of accessibility barriers. Valence Metrics lists findings from automated checks; it is not a legal assessment and does not certify conformance with the ADA, WCAG, the European Accessibility Act or any other standard.