Building Accessible Applications
Make the most of your application by building accessibility into it right from the beginning. It ensures the widest possible customer base and enhances the user experience for all.
There are many great resources available on the internet to get you started including the following:
Android
Android Developers Accessibility Guide
iOS
Accessibility Programming Guide for iOS
Windows
Guidelines for designing accessible apps
Microsoft Dev Center - Accessibility
Testing for accessibility in Windows Store apps
BlackBerry
App Quality Alliance
We would also recommend all app developers to follow the guidelines set by the App Quality Alliance (AQuA), a global association focused on helping the industry continually improve and promote mobile app quality, across all platforms:
Best Practice Guidelines for Developing Quality Mobile Apps
Essentials of Mobile App Testing
Accessibility Testing Criteria
Further useful resources
Accessibility is a Feature You Can Build - A Guided (Video) Tour of a11y Basics
Google webinar: Improve your Android app's accessibility
Resources for Mobile Accessibility Guidelines
W3C on Mobile Accessibility: How WCAG 2.0 and Other W3C/WAI Guidelines Apply to Mobile
Screenreader testing guidelines