With the Mobile World Congress in full swing in Barcelona, there has been a lot of proselytizing about the enormous benefits the spread of mobile connectivity will bring to the developing world: economic growth, education, health, and democratic government. But for its full potential to be realized, mobile technology has to be accessible to everyone, including people with disabilities like vision and hearing loss.

When comparing similar Android and Apple handsets, iOS loses its purported advantage for usage levels and app interactivity. In fact, Android users at the high end are more engaged in apps than even high end iPhone owners, according to Localytics.