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Thursday, April 21, 2022

General information



Deaf Hearing Chat system (Android ver.)

Download free limited demo version here!


A new complex for connection of a deaf person with a hearing one, which gives an amazing opportunity of real communication.

The complex consists of two Android-devices connected with each other by means of Bluetooth. One of the devices, called “device-D” (Deaf Person), is kept by a deaf person. The other one, called “device-H” (Hearing Person), is kept by a hearing person.

The application for the device-D, called Deaf-Hearing Chat Device D, enables a deaf person to type text messages on a virtual keyboard and to send them to the device-H (the button “Send”). Each sent message can be duplicated by the synthetic speech (the button “Speak and Send”). For the synthetic speech a speech synthesis module should be installed on the device (usually it’s installed; if it’s not it can be downloaded from Google Play, e.g. SVOX classic TTS or Pico TTS). The messages, received from the device-H, are shown on the display.

The application for the device-H, called Deaf-Hearing Chat Device H, enables a hearing person to type text messages on a virtual keyboard or using voice input (the button “Voice Input”). You need an Internet access for voice input. To test the Internet connection quality you should press the button “Test”. To send a message to device-D you should press the button “Send”. The messages, received from the device-D, are shown on the display.
Supported languages for voice input: English (US, UK, Australia, Canada, India, New Zealand, South Africa ), French, German, Italian, Russian, Hebrew, Spanish (Spain, US, Argentina, Bolivia, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Uruguay, Venezuela), Japanese, Portuguese (Brazilian), Czech, Turkish, Dutch, Mandarin Chinese (Traditional Taiwan, Simplified China, Simplified Hong Kong), Korean, Indonesian, Malaysian and some others.

The exchange of messages is possible in any language supported by your Android-device. Such complex can be used in any country. All messages between the devices free of charge.

Once again, pay your attention that for the use of the complex you need to install the following:
- for the device D – the application Deaf-Hearing Chat Device D;
- for the device H – the application Deaf-Hearing Chat Device H.


This complex gives to deaf person fantastic capabilities for communication. Device-D and device-H connect via bluetooth.
You can choose one or more of the three variants of the complex:
1. phone(as device-D) + phone (as device-H)

This variant is very convenient for constant communication, for those families in which there is a deaf member. Each message is followed by vibration, so one can always call a deaf person, address him (or her).

2. phone (as device-D) + tablet (as device-H)

A deaf person can always have complex with himself (herself). It’s very convenient for communicating freely with the hearing people in public places: shops, hospitals, service centers, etc. A deaf person just hands a tablet to a manager or a consultant, and after that they can communicate freely. The convenience of a tablet is that at its small size its keyboard is big enough, so that everyone can type a big volume of text. It’s better to use a 7” tablet. The convenience of a smartphone is its compactness, and the deaf people usually type messages on its virtual keyboard very quickly.


3. tablet (as device-D) + tablet (as device-H)

This variant can be useful for a services sector, where the deaf people are served. For serving a deaf client the latter is given the device-D, the device-H is kept by a hearing manager, after what they start communicating.
Also, if a deaf person has difficulties with typing messages on a small smartphone keyboard the complex “a tablet + a tablet” will be more convenient.

User review from US
User review from Russia
User review from Netherlands
North Dakota Interagency Program for Assistive Technology Review



download applications for device-D and Device-H from Google Play

If you have any questions, please ask in comments.

Saturday, August 7, 2021

Deaf Hearing Chat on iPhone, iPod, iPad !

Deaf  Hearing Chat on  iPhone, iPod, iPad !



Deaf Hearing Chat system (iOS version)
Install the “Deaf-Hearing Chat ” application on the first device (which will be used by a deaf person). 
Install the “Deaf-Hearing Chat” application on the second device (which will be used by a hearing person). 
Run the applications on both devices and link the devices via Bluetooth. 
A hearing person speaks into the phone, the application transforms the speech into a text message and sends it to the device used by a deaf person. You can also exchange text messages between the devices. 
The complex is very convenient for regular communication in families with a deaf family member. Each message is followed by vibration (iPhone), so you can always call a deaf person, address him / her. 
The complex may also be used by a deaf person to communicate with hearing people in a shop, a hospital, a bank, etc. In this case, a deaf person should have both devices with him / her and pass a device with a pre-installed “Deaf Hearing Chat” application to a hearing manager or consultant to start communication at any time. 

The application Deaf-Hearing Chat , enables a hearing person to type text messages on a virtual keyboard or using voice input (the button “Voice Input” or the button "Say and Send" ). You need an Internet access for voice input. To send a message to second device you should press the button “Send”. The messages, received from the second device, are shown on the display. 

iPhone  4 screen:


 iPad  screen:


iPhone (iPod) 5 screen:



Friday, June 18, 2021

Now on iphone : Note, Listen for Deaf.

Now on iphone : Note, Listen for Deaf.
Absolutely must have!





Note Listen for Deaf ( ios version)

If you have any questions, please ask in comments!



Wednesday, October 22, 2014

Review from Laura Hudson


Communication made easier At age 86 my father is completely deaf. Finding ways to communicate was difficult and frustrating for the whole family. Now he can carry his tablet everywhere...restaurants, Dr appointments, shopping. I have the hearing app installed on my phone and have a spare wifi only phone at their house for visitors. I am encouraging my brother and sisters to download the hearing app as well. Thank you for giving my father back some sense of participation in his surroundings

Saturday, December 14, 2013

Deaf Hearing Chat iOS v1.1 released!

What's new:
 - full iPad compatible
 - full iOS7 compatible

iPhone 4 screen:


 iPad  screen:


iPhone 5 screen:



Saturday, August 10, 2013

Deaf Hearing Chat review by Jeannie Krull

Jeannie Krull is an Assistive Technology Coordinator with IPAT. She is an ASHA certified speech/language pathologist and a RESNA certified Assistive Technology Professional, who has worked with people with disabilities of all ages for over 21 years.
Read, what she think about Deaf Hearing Chat: No Sign-Language Interpreter? Try this App System!