In the environment of close interactions between people with different capabilities, there are some communication obstacles that may be solved with the apparition of new technologies. In this context and with a social goal Blappy is created, a tool that allows dialogue when interlocutors do not share the same communication channel (either because of a language barrier or because of a sensorial barrier) solving situations like “i do not hear what you say”, “I do not see what you write” or “I do not understand the language you are speaking”. This allows users to share knowledge regardless of the communication channel and focus on the content of the conversation beyond the sensorial capabilities of each one of them.
Taking advantage of the mobile nature of new smartphones and tablets so usual in our day-to-day, regardless of their language and their possible sensorial disabilities, Blappy allows two people to establish a conversation through the Bluetooth technology of their devices.
It is an instant messaging application designed for two types of users: people with visual disabilities and people with hearing disabilities.
For people with visual impairments, Blappy offers the following possibilities:
• Audionavigation with or without TalkBack. People with blindness or vision loss usually make use of Android’s accessibility service, TalkBack, as a screen reader. Blappy includes descriptions of the various elements shown in the screen (like icons) in order for users to be able to navigate with them through this service. It also includes instructions and alerts that help the user navigate through the different parts of the application.
• Speech recognition. For those users who, due to a visual impairment, are not capable of using the keyboard of their device, Blappy offers the possibility of writing messages through voice by means of Google’s speech recognizer.
• Contrast. People with low vision can choose the colours in which the interface is shown, changing from a by default blue/white combination to a white/black/yellow combination that presents a higher level of contrast and fulfills the Web Content Accessibility Guidlenes version 2 (WCAG 2.0) AAA requirements.
• Size. People with visual impairments can configure the size of every element in the application (messages, menus, icons…), being allowed to choose between two sizes (regular and large size).
For people with hearing difficulties, the application offers the possibility to configure alerts and notifications, choosing between vibration and/or sound. This messages are also shown in a visually.
Along with the forementioned settings, Blappy allows users to configure other global settings of the application, such as manage conversations or select the language (Blappy is available in Spanish, English, French and Portuguese), as well as other chat-specific settings (select the background, read messages with voice synthesis automatically or when touching the screen…).
As an automatic translator, along with being an accessible application to allow communication between people with sensorial disabilities by means of speech recognition and voice synthesis, Blappy detects the language in which each device is configured and translates conversations automatically employing Google Translator when the language of both devices is not the same one.
Blappy has a support web that includes a help section with FAQs for the users, explicative texts, demonstrative videos, contact information and users’ ratings. It is available in

Blappy is available for free on the Play Store, created by CESyA (Centro Español del Subtitulado y la Audiodescripción). Download it and break the communication barriers.
  • Free version available
  • 1.0 - 0 (Android )
Urban life, Travel and Tourism, Social Media
  • Chat. Bluetooth, speech recognition, text to speech, TalkBack, Accesibility, sensorial dissabilities, communication barriers, inclusion, translation, language, blindness, low vision, deafness, hard of hearing,
Target Users
  • People with sensorial dissabilities (blindness, low vision, deafness, hard of hearing) and interlocutors with different languages.
Available in the following app stores
Google Play
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