An accessible mobile app lets people with different abilities complete the same tasks with less friction. That includes users who rely on screen readers, enlarge text, navigate without touch, or need clear visual contrast. Accessibility works best when teams include it from the first design decisions through development and testing—not as a final polish. Use the steps below to identify common barriers, make practical improvements, and check that your app remains usable across devices and settings.
Plan for varied ways to interact
Start by mapping the app’s essential tasks, such as creating an account, finding information, or completing a purchase. For each task, consider how someone can finish it using touch, assistive technology, or an external keyboard. Avoid making color, gestures, or precise tapping the only way to understand or operate a control. Give important actions clear labels and predictable placement.
Design controls with enough space to select comfortably, and keep the layout consistent between screens. Do not rely on a swipe, drag, or multi-finger gesture without offering a simple alternative. Provide visible instructions when an interaction is unfamiliar, and make sure users can undo or correct actions when practical. These choices help people with motor, vision, or cognitive disabilities and often make the app easier for everyone.
Support screen readers
Give every interactive element a meaningful accessible name that describes its purpose. A button labeled “Save changes” is more useful than “Button,” and an icon-only control needs a spoken label that explains the action. Mark decorative images so screen readers can skip them; provide concise alternative text for images that convey information. Check that labels do not repeat nearby text unnecessarily.
Use the platform’s native controls and accessibility APIs where possible, then verify the reading order. Screen readers should move through content in a logical sequence, announce headings and control states, and identify errors near the relevant fields. When a screen changes or a task finishes, provide an appropriate announcement without unexpectedly moving focus. Test with VoiceOver on iOS and TalkBack on Android, using real app flows rather than isolated controls.
Make text and visuals adaptable
Check text and interface colors for sufficient contrast, including labels, icons, borders, and text shown over images. Do not communicate status through color alone: pair color with a word, shape, or icon. Review the interface in light and dark appearance if your app supports both, and check disabled, selected, and error states rather than testing only the default screen.
Let users increase system text size without clipping, overlapping, or hiding essential controls. Use flexible layouts and allow content to wrap instead of fixing containers to a height that only fits the smallest text. Keep text readable at enlarged settings, and avoid presenting important instructions solely as text embedded in an image. Test long labels and translations too, since both can expose layout problems.
Test keyboard access and real tasks
Connect a physical keyboard and confirm that users can reach every interactive element, operate it, and leave it using standard keys. Focus should move in a sensible order and remain visibly highlighted. Check that dialogs and menus receive focus when opened, keep it in the right place while active, and return it appropriately when closed. Avoid traps that prevent users from reaching other controls or exiting a screen.
Combine automated checks with manual testing on supported devices and operating system versions. Run through complete tasks with a screen reader, enlarged text, high-contrast settings where available, and keyboard navigation. Ask people with disabilities to test representative flows and report where they get stuck. Record issues, assign owners, and include accessibility checks in design reviews and release testing so fixes do not disappear in later updates.
Accessible apps come from clear labels, adaptable layouts, reliable navigation, and repeated testing—not a single compliance check. Prioritize the tasks users need most, test them with assistive technology, and fix barriers before release. Bristol Access Lab can help teams review an app’s accessibility and plan practical improvements.