Mobile App Accessibility Checker

Mobile devices now account for over 60% of all web traffic, and for many users — particularly those in developing countries and lower-income communities — mobile is their only internet access. People with disabilities are no exception: they use mobile devices with screen readers (VoiceOver, TalkBack), switch access, voice control, and other assistive technologies.

WCAG 2.1 specifically added mobile-focused success criteria, including target sizing and reflow requirements, recognizing that mobile accessibility was underserved. With the European Accessibility Act covering mobile applications and the ADA applying to mobile web experiences, testing your mobile web interface is as important as testing desktop.

Mobile web experiences face unique accessibility challenges from smaller screens, touch interaction, and responsive design. CompliScan detects these issues:

• Touch targets too small — WCAG 2.5.8 (Target Size Minimum) requires interactive elements to be at least 24x24 CSS pixels, and WCAG 2.5.5 recommends 44x44 pixels. Many mobile interfaces have tiny buttons, links, and form controls that are difficult for users with motor impairments to tap accurately.
• Content not reflowing at 320px width — WCAG 1.4.10 (Reflow) requires content to be usable at 320px CSS width (equivalent to 400% zoom) without horizontal scrolling. Many responsive designs break at this width, requiring two-dimensional scrolling.
• Hover-dependent interactions — content revealed on mouse hover (tooltips, dropdown menus) that has no touch or focus equivalent, making it inaccessible on touch devices.
• Fixed/sticky elements covering content — fixed headers, cookie banners, and floating buttons that overlap interactive content, making it impossible to tap elements behind them, especially when keyboard zoom is active.

Run a free CompliScan scan on your website — the scanner evaluates the rendered page and identifies issues that affect mobile users, including touch target sizing and responsive layout problems.

For touch targets, set minimum sizes of 44x44px for primary actions and 24x24px for secondary elements. Use CSS: min-height: 44px; min-width: 44px; on buttons and interactive elements. For reflow, test your site at 320px viewport width and fix any horizontal overflow. For hover-dependent content, provide touch and focus alternatives: :focus and :focus-within CSS states should reveal the same content as :hover.

For fixed elements, ensure they don't cover interactive content at any zoom level. Consider using position: sticky with z-index management. CompliScan's Shield Pro plan ($149/mo) provides daily mobile accessibility monitoring for up to 10 sites.

The ADA applies to mobile web experiences — courts have ruled that mobile websites and web apps must be accessible. The European Accessibility Act explicitly covers mobile applications. The ADA Title II April 2026 deadline requires government mobile web services to meet WCAG 2.1 AA.

WCAG 2.1 specifically added criteria for mobile: 1.3.4 Orientation (don't lock to portrait/landscape), 1.4.10 Reflow (320px width), 2.5.1 Pointer Gestures (single-pointer alternatives), and 2.5.5 Target Size. These criteria were added because the original WCAG 2.0 didn't adequately address mobile accessibility.

Automated tools detect approximately 30-40% of WCAG issues. CompliScan effectively identifies touch target sizing, contrast failures, missing labels, and structural issues. Gesture-based interactions and screen reader compatibility on mobile require manual testing with VoiceOver (iOS) or TalkBack (Android).