If you've ever asked "does WCAG apply to mobile apps?" — the short answer is yes. WCAG 2.1 was specifically designed to address mobile accessibility, and it applies to iOS, Android, and all mobile applications that are used by the public.

This comprehensive guide covers everything you need to know about WCAG for mobile apps — from legal requirements and success criteria to practical steps for making your app accessible.

Does WCAG Apply to Mobile Apps? — The Short Answer

Yes, WCAG applies to mobile apps. WCAG 2.1 was published in 2018 with mobile accessibility as a primary focus. It added 17 new success criteria specifically designed to address mobile devices, touch interactions, and small screens.

Here's why WCAG applies to mobile apps:

• ADA Title III (USA): Courts have ruled that mobile apps are "places of public accommodation"
• European Accessibility Act (EAA): Explicitly covers mobile apps and digital services
• Section 508: Covers mobile apps used by federal agencies
• AODA (Canada): Requires mobile app accessibility for public and private sectors

WCAG 2.1 Mobile-Specific Success Criteria

WCAG 2.1 added 17 new success criteria, many of which directly address mobile app accessibility. Here are the most important ones:

iOS and Android Accessibility — What You Need to Know

iOS Accessibility (Apple)

Apple provides built-in accessibility features for iOS apps, including:

• VoiceOver: Screen reader for blind users
• Dynamic Type: Adjustable text size
• Reduce Motion: Disable animations
• AssistiveTouch: Alternative touch gestures
• Live Captions: Real-time captions for audio

iOS apps should follow the Apple HIG (Human Interface Guidelines) for accessibility, which align with WCAG 2.1 Level AA.

Android Accessibility (Google)

Google provides built-in accessibility features for Android apps, including:

• TalkBack: Screen reader for blind users
• Switch Access: Alternative input methods
• Font Size: Adjustable text size
• Color Inversion: High contrast mode
• Live Captions: Real-time captions for audio

Android apps should follow the Material Design accessibility guidelines, which align with WCAG 2.1 Level AA.

Legal Requirements for Mobile App Accessibility

Several laws require mobile app accessibility:

• ADA Title III (USA): Requires public-facing mobile apps to be accessible
• European Accessibility Act (EAA): Covers mobile apps in the EU
• Section 508: Covers mobile apps for federal agencies
• AODA (Canada): Requires mobile app accessibility in Ontario
• UK Equality Act: Covers mobile apps in the UK

Over 5,100 ADA lawsuits were filed in 2025, many targeting inaccessible mobile apps. Don't wait for a lawsuit to make your app accessible.

How to Check Your Mobile App for WCAG Compliance

Step 1: Use a Free Mobile Accessibility Scanner

Visit AccessiTool's free mobile accessibility scanner to test your mobile app or mobile website against WCAG 2.1 Level AA standards.

Step 2: Test with Screen Readers

Test your app with VoiceOver (iOS) and TalkBack (Android) to ensure blind users can navigate your app.

Step 3: Test Touch Targets

Ensure all touch targets are at least 44x44 pixels (WCAG 2.5.5).

Step 4: Test Content Reflow

Ensure your app content reflows properly at 320px width (WCAG 1.4.10).

Step 5: Test with Real Users

Test your app with real users with disabilities to catch issues that automated tools miss.

Mobile App Accessibility Checklist

Touch Targets

• ✅ All touch targets are at least 44x44px (2.5.5)
• ✅ Spacing between touch targets is sufficient

Screen Reader Support

• ✅ All UI elements have accessible names (4.1.2)
• ✅ Proper ARIA roles and labels
• ✅ Focus order is logical (2.4.3)

Motion & Gestures

• ✅ Complex gestures have alternatives (2.5.1)
• ✅ Motion can be disabled (2.5.4)
• ✅ No auto-playing content without controls

Visual Design

• ✅ Color contrast of 4.5:1 for text (1.4.3)
• ✅ Non-text contrast of 3:1 (1.4.11)
• ✅ Content reflows to 320px (1.4.10)
• ✅ Text spacing is adjustable (1.4.12)

Frequently Asked Questions — Does WCAG Apply to Mobile Apps?

Internal Links — Mobile Accessibility Resources