From the National Library Service for the Blind and Physically Handicapped:
People who are blind, visually impaired or have a physical disability may now download talking books to their Android phone or tablet, if they are registered with the National Library Service for the Blind and Physically Handicapped (NLS) in the Library of Congress.
The Braille and Audio Reading Download (BARD) Mobile app is now available through Google Play for devices running Android OS 4.1 or later. The free app allows readers to download talking books from their NLS BARD accounts. Access to BARD is provided through local cooperating libraries. BARD contains nearly 65,000 books, magazines, and music scores in audio and braille formats, with new selections added daily.
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NLS has provided free library service for people who have visual disabilities for more than 80 years and for people with physical disabilities since 1966. Best known as the braille and talking-book program, NLS upgraded its analog program to digital in 2009.
The BARD app for iOS became available in September 2013 and currently is found on more than 36,000 registered devices.
Download: Direct to BARD for Android (via Google Play)