DEF-ISL

3.0.9

SriJay Software Solutions Pvt Ltd

4.58

3,786 reviews

100,000+
Downloads

Free

Indian Sign Language

Screenshots by SriJay Software Solutions Pvt Ltd, from the Google Play listing

View on Google Play

Summary

DEF-ISL helps learners master Indian Sign Language with a library of 50,000+ signs and in-built videos and illustrations. Developed by SriJay Software Solutions, the education app targets both adults and children for accessible, practical sign-language learning in EDUCATION.

Pros & Cons

Vast library of signs (50k+) for broad learning
In-built videos provide visual demonstrations
User-friendly design suitable for adults and children
Free to download and start learning

Limited text-based translation or captioning features compared with some competitors
Less emphasis on community or live interaction features
Content focuses on signs and videos; fewer interactive learning modes are mentioned

About DEF-ISL

DEF-ISL is an education app developed by SriJay Software Solutions Pvt Ltd.

How many times has DEF-ISL been installed?

DEF-ISL has been installed 410 thousand times. In the last 30 days, the app was installed 3 thousand times.

What is the rating of DEF-ISL?

DEF-ISL is rated 4.58 out of 5 stars, based on 3.8 thousand ratings.

Is DEF-ISL free?

DEF-ISL is free. The app size is 8.53 MB. The latest version available is 3.0.9. The last update was on February 9, 2026.

What are the requirements for DEF-ISL?

DEF-ISL requires Android 4.2+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since July 2018.

DEF-ISL is made and published by SriJay Software Solutions Pvt Ltd. AppBrain is an independent app data site and isn't affiliated with SriJay Software Solutions Pvt Ltd. The app name, icon, screenshots and description belong to SriJay Software Solutions Pvt Ltd and are shown as published on Google Play.

Description by SriJay Software Solutions Pvt Ltd (from Google Play)

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.

Recent changes:
Performance Improvements

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More data about DEF-ISL

Price	Free
Total installs	410 thousand
Recent installs	3 thousand
Rating	4.58 based on 3.8 thousand ratings
Ranking	Not ranked
Version	3.0.9
App size	8.53 MB
Number of libraries	34
Designed for Android	4.2+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternatives to DEF-ISL

Google Play Rating history and histogram

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Installs over time

DEF-ISL has been installed 410 thousand times. Over the past 30 days, it averaged 100 installs per day.

Changelog of DEF-ISL

Show changelog

Developer information for SriJay Software Solutions Pvt Ltd

SriJay Software Solutions Pvt Ltd

info@def.org.in

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Comments on DEF-ISL for Android

★★★★★ Lalit singh Singh · Oct 30, 2026

I didn't open emil problem again failed open regarding pass open online (play store DEF ISL we have m best friends agree Yes india we all best you sign powerful word right just do

★★★★★ vaithynathan Nathan · Jul 3, 2025

Hello. I feel like I learn new words with this def isl app. I think it's important for me to utilize for my learning. It helps me to research new words meanings in Indian Sign Language. I had many issues and experiences in facing communication barriers with my friends and family etc. I didn't know writing skills, English and communication. It has access, it's a LOOF help. It makes feel me happy because I'm showing improvement in my communication. Thank you so much for deaf enabled foundation.

★☆☆☆☆ Shubh Darji · Oct 22, 2026

Hi Teams DEF. I'm using to learn about Def app, but it's not open working app. You should check resolve the issue app. Kindly don't delay. Hi Team DEF. I'm unable to working open def app and i didn't received code OTP by email. I guess it is wrong program application.

★☆☆☆☆ Lalit Shukla · Oct 3, 2026

Hello.... I do not open ISL learning by taking profits.... All decisions improve first received Sign language...... If you don't unless you do... I love Decision and learn more or try again. I still have a process to use the first straight of follow-up....

★★☆☆☆ Mushirul Haque · Jul 11, 2025

But it is half the words of the institute. It should be done with many words full of A-Z DEF ISL.

★☆☆☆☆ Sanil P.P · Sep 16, 2026

The DEF-ISL app says "open failed" or gives a network error even though your internet is working, the problem is likely a blocked background connection, full storage, or an outdated file. I need my learn to(DEF-ISL) word important. How solve ?

Google Play Rankings for DEF-ISL

This app is not ranked

Technologies used by DEF-ISL

10 permissions · 34 libraries

Subscribe to see full permission and library details

Trust & Safety: Permissions indicate ad identifiers and standard networking needs (ACCESS_ADSERVICES_AD_ID, ACCESS_ADSERVICES_ATTRIBUTION, ACCESS_ADSERVICES_TOPICS, INTERNET, ACCESS_NETWORK_STATE) plus foreground service and wake lock usage. A dynamic receiver is listed as not exported.

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