Why mobile is harder
Web accessibility principles apply, but small screens and touch add barriers. Kane et al. (2008) studied how blind people use flat glass, the background of today's explore-then-double-tap in VoiceOver and TalkBack. Lazar et al. (2007) found unlabeled buttons and images among top frustrations; icon-only buttons without names read just 'button'.
Touch, gestures and text size
WCAG 2.2 (W3C, 2023) adds minimum target size (2.5.8) and dragging alternatives (2.5.7). People with motor impairments struggle with small targets and precise motions (Anthony et al., 2013), so keep touch targets generous (Parhi et al., 2006) and give swipe-only actions a button. Blind users prefer simple edge-based gestures (Kane et al., 2011). Check layouts with Dynamic Type enlarged (Apple, n.d.).
Testing and habits
Automated tools catch only some contrast and label issues. Run key flows with VoiceOver and TalkBack, checking focus order, focus moving into modals, colour contrast and announced status changes. Accessibility is cheapest when built into design-system components from the start.
FAQ
- Is it only for disabled users?
- No; it helps everyone facing situational limits such as one hand, sunlight or noise.
- What should be fixed first?
- Icon button labels, adequate target sizes and text scaling support.
Sources reviewed: 2026-10-27
References
- World Wide Web Consortium. (2023). Web Content Accessibility Guidelines (WCAG) 2.2. Standard adding mobile-relevant criteria such as target size (2.5.8) and dragging alternatives (2.5.7).
- Apple. (n.d.). Accessibility. Human Interface Guidelines. iOS guidance on VoiceOver and Dynamic Type.
- Kane, S. K., Bigham, J. P., & Wobbrock, J. O. (2008). Slide rule: Making mobile touch screens accessible to blind people using multi-touch interaction techniques. In Proceedings of the 10th International ACM SIGACCESS Conference on Computers and Accessibility (pp. 73–80). ACM. Early system making touchscreens usable for blind users.
- Kane, S. K., Wobbrock, J. O., & Ladner, R. E. (2011). Usable gestures for blind people: Understanding preference and performance. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (pp. 413–422). ACM. Compares gestures preferred by blind users.
- Anthony, L., Kim, Y., & Findlater, L. (2013). Analyzing user-generated YouTube videos to understand touchscreen use by people with motor impairments. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (pp. 1223–1232). ACM. Touchscreen use by people with motor impairments.
- Lazar, J., Allen, A., Kleinman, J., & Malarkey, C. (2007). What frustrates screen reader users on the web: A study of 100 blind users. International Journal of Human–Computer Interaction, 22(3), 247–269. Catalogues frustrations of screen reader users.
- Parhi, P., Karlson, A. K., & Bederson, B. B. (2006). Target size study for one-handed thumb use on small touchscreen devices. In Proceedings of MobileHCI 2006 (pp. 203–210). ACM. Thumb target size study.