Ensuring mobile apps are accessible to everyone isn’t just about compliance—it’s about inclusivity and creating exceptional user experiences. With WCAG 2.2, the bar has been raised, emphasizing updated standards like touch target sizes, accessible drag-and-drop interactions, and improved authentication methods. Testing for accessibility on iOS and Android apps requires understanding their unique features and tools while addressing common challenges across both platforms.

Similarities Between iOS and Android Accessibility Testing

While iOS and Android present different ecosystems, they share fundamental accessibility goals:

• WCAG 2.2 Compliance: Testing ensures apps meet guidelines such as touch target sizes (SC 2.5.8), drag-and-drop interactions (SC 2.5.7), and accessible authentication (SC 3.3.7).
• Manual and Automated Testing: Both platforms require a mix of automated scans and manual interaction testing for a comprehensive review.
• Assistive Technology Compatibility: Ensuring apps work seamlessly with screen readers like VoiceOver (iOS) and TalkBack (Android).

Differences in Accessibility Testing Techniques

1. Assistive Technologies

• iOS (VoiceOver):
  • VoiceOver includes unique multi-finger gestures, such as activating the rotor or navigating by headings and landmarks. Testing ensures these gestures align with WCAG 2.2’s interaction standards and function across all iOS devices.
• Android (TalkBack):
  • TalkBack supports customizable gestures, making it essential to test default and personalized gesture sets. Testing across different Android devices and versions is critical due to manufacturer customizations.

2. Gesture Variations

• iOS (VoiceOver): Multi-finger gestures like swipes and taps play a significant role. Test for actions such as navigating sliders, activating the rotor, and performing drag-and-drop tasks.
• Android (TalkBack): While TalkBack historically relied on single-finger gestures, newer versions introduce multi-finger interactions. Ensure all gestures, including drag-and-drop, function as intended across various devices.

3. Device Settings

Testing should also consider device-specific accessibility settings, including:

• External Keyboards: Test app functionality with external keyboards for both platforms, ensuring smooth navigation and interaction without touch input.
• Text Adjustments: Verify that apps adapt correctly to system-wide text size settings.
• Zoom Levels: Confirm compatibility with native zoom features and ensure that interfaces remain functional and readable at all levels.

Testing Tools for Accessibility

iOS Tools

• Xcode Accessibility Inspector: Highlights issues like missing labels and improper focus management.
• VoiceOver: Used for manual testing of gestures and interactions.

Android Tools

• Google Accessibility Scanner: Identifies barriers such as insufficient contrast and small touch targets.
• TalkBack: Essential for manual testing of navigation and interaction patterns.

Testing Best Practices

1. Test Real Devices: Simulators are helpful, but testing on actual devices ensures accuracy, especially for gestures and device-specific settings.
2. Combine Automated and Manual Testing: Automated tools detect baseline issues, while manual testing uncovers real-world barriers.
3. Involve Assistive Technology Users: Real-world feedback is invaluable for refining accessibility.

Final Thought: The Importance of Keyboard Accessibility

As apps increasingly support external peripherals, ensure your app is fully navigable using an external keyboard. This includes logical tab order, focus indicators, and support for keyboard shortcuts. Addressing keyboard accessibility is a key step toward inclusive design.

Conclusion

Accessibility testing for iOS and Android apps requires platform-specific expertise and an understanding of WCAG 2.2 standards. From screen readers to device settings, thorough testing ensures your app meets compliance requirements while delivering an exceptional user experience.

Ready to make your app accessible? Learn more about Zenyth’s Mobile Audit Services and discover how we can help you create inclusive, WCAG 2.2-compliant mobile experiences.