A Detailed Mobile App Accessibility Testing Checklist

Mobile App Accessibility Testing Checklist

To make sure your mobile app is accessible to everyone, here are some key areas to focus on. Use this mobile app accessibilty testing checklist to ensure you cover everything and avoid accessibility issues.

General Guidelines

These guidelines focus on improving mobile accessibility, particularly for users relying on assistive technologies or those with motor impairments.

• App Title: The app must have a title.
• Headings Hierarchy: Follow a clear order for headings, i.e., hierarchy.
• Structure With ARIA Landmarks: Use ARIA landmarks to define the mobile app’s structure, like roles for search, navigation, content, and banners.
• Touch Event Handling: For touch events, one of these must be true:
• Down-Event Restriction: Do not trigger actions on a down-event (like when you first press the screen).
• Up-Event Action Trigger: Actions should start with the up-event (lifting your finger) and give the option to stop or reverse the action.
• Action Cancellation: If an action starts with a down event, the up event should cancel it.

Design for Different Screen Sizes

Designing mobile apps must account for varying screen sizes, especially for mobile screens that are smaller and have different aspect ratios. Smaller screens limit how much users can see, especially for those with poor vision who may need to zoom in.

To help those with smaller screens, you can follow this mobile app accessibility testing checklist:

• Touch Accessibility: Offer touch controls and preset screen sizes to reduce the need for users with low vision to zoom in and out.
• Form Layout: Place form fields below the labels rather than beside them.
• Mobile Content: Limit the amount of data on each page by creating a mobile-friendly version of the website.
• Link Text Sizing: Adjust the length of the link text based on the screen size.

Touch Targets Size

Mobile devices now have better resolution, allowing many interactive elements to fit on small screens. These elements need to be large enough and spaced apart so users can easily tap them. Especially when users make quick gestures, the tap areas in the app should be big enough for users to interact confidently and accurately.

Following is the mobile app accessibility testing checklist for touch target sizes:

• Minimum Touch Target Size: Make touch targets at least 9 mm in height and width.
• Inactive Space for Accessibility: Include some inactive space around smaller touch targets.

Touch Target Placement

Interactive elements in mobile apps should be easy to reach, no matter how the device is held. Developers should consider that a button location easy for some might be hard for others, depending on hand preference or thumb reach. Here are a few suggestions for touch target placement:

• Convenient Button Placement: Place buttons in convenient spots.
• Flexible Interaction Design: Ensure all interactive elements can be used flexibly.

Color Contrast Ratios

Since many people use mobile apps outdoors and some may have disabilities, good color contrast is crucial for accessibility.

Here is the mobile app accessibility testing checklist for checking color contrast in mobile apps:

• Accessibility Guidelines: Follow WCAG 2.1 AA level color contrast guidelines to help visually impaired users.
• Text Contrast: Aim for a contrast ratio of 4.5:1 for regular text.
• Large Text Contrast: Keep a contrast ratio of 3:1 for larger text.
• Alternative Information: Make sure any information that relies on color can also be understood in other ways.

For more information, read this blog on accessibility colors to make sure you create color palettes with the right contrast ratios.

Consistent Navigation and Layouts

Having a consistent content layout and navigation is vital for a good user experience. People with limited motor skills may find it hard to use a mouse or keyboard and often prefer mobile apps over web browsers. Assisted navigation can help guide users through options.

Here is the mobile app accessibility testing checklist to improve usability:

• Consistency: Keep the content, layout, and navigation consistent to enhance the user experience.
• Assistive Navigation: Design mobile apps with helpful navigation to guide users through menus, especially for those who may have difficulty using web browsers.
• Organized Layouts: Ensure layouts are organized and visually balanced to reduce confusion and improve accessibility.

Optimize App Content and Media

To create an accessible mobile app, it is important to ensure that all content and media are usable by everyone.

Here is the mobile app accessibility testing checklist for optimizing your mobile app content and media:

• Screen Adaptability: Make sure app content and media can be easily viewed on both small and large screens.
• User-Friendly Features: Ensure that interactive features, like buttons and shopping cart options, are easy to use and accessible.
• Clear Organization: Use clear header tags and organize content to help users with cognitive disabilities understand and navigate the app better.
• Visual Support: Include clear captions for images to support accessibility for users who are hearing or visually impaired.

Provide Easy Methods for Data Entry

Data entry is a key feature of mobile applications, where users can enter information in different ways, including the on-screen keyboard, Bluetooth keyboard, and voice input.

You can follow this mobile app accessibility testing checklist to make the data entry process easier:

• Clear Labeling: Make sure all input fields have clear and descriptive labels.
• Accessible Keyboard Navigation: Allow users to navigate through all interactive elements using the keyboard so they can enter data without needing a touch screen.
• Input Field Size: Design input fields to be large enough for users to tap easily, with a minimum touch target size of 9 mm.
• Autofill and Suggestions: Include autofill options and suggestions to help users fill in data quickly and accurately.
• Multi-Input Support: Allow users to easily enter multiple values (like tags or keywords) using simple methods, such as separating them with commas.