About DEF-ISL

Indian Sign Language

The DEF-ISL app makes learning of sign language easy, accessible and interesting. Packed with 50000+ easy-to-understand signs and phrases, in-built videos, illustrations, this easy to navigate app can be used both by adults and children who are deaf or hearing impaired. The customized mobile app is available for download on iOS and Android platforms.

DEF-ISL offers the opportunity for all to learn sign language and thereby reach out to the deaf more easily.

DEF is an organization made of the deaf, for the deaf, by the deaf, focused on addressing the issues of communication for the deaf and developing methods and resources to improve their connect with the society at large. They aim to make a lasting impact on the future of thousands of deaf or hard of hearing children and adults by providing them access to early identification, hearing technology and expertise to reach their full potential.

2019-2020 app initiative supported by L&T Construction.

What's New in the Latest Version 3.0.9

Last updated on Feb 11, 2026
Performance Improvements

Additional APP Information

Latest Version

3.0.9

Uploaded by

Naz Abdulla

Requires Android

Android 7.0+

Available on

Content Rating

Everyone

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Security Report

DEF-ISL

3.0.9

0
/65
No security vendors flagged this file as malicious
Last Scan: Feb 11, 2026
No Virus
No Spyware
No Malware
Verified by APKPure.com
SHA256:

6f9d56f1dc3439096b87d79af6d70377e424a372d17bcd6acb07dfd188f136ce

SHA1:

348dd79562af6cf6dd2c57ebcfcea7b7803994a2