OneVoice

OneVoice was an iPad app that speaks on behalf of people who cannot, designed by Nathan Barry with help from friends, using licensed speech synthesis from Acapela Group. It sold for $200, with school discounts for bulk purchases.^{Source [1]}

Barry marketed it directly to speech language pathologists rather than relying on App Store promotion, and it reached $19,000 in profit by November 2011. It earned $17,624 in 2012, after Apple's and Acapela's cuts.^{Source [1]Source [4]}

Nathan Barry released OneVoice on the App Store in January 2011 as a lower cost replacement for dedicated speech devices, and in October 2011 left his job to focus on it. By 2012 he described the app as earning without active marketing or development, and he later moved on to books and ConvertKit; its current status was not established.^{Source [1]Source [4]Source [5]}