# DEF ISL

> Sign language learning app with extensive video and illustration resources. (iPhone/iPad app by SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED.)

- Source: https://appshunter.io/ios/app/def-isl/id6447841373 (this page in markdown: same URL + `.md`)
- Developer: [SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1656364843)
- Category: Education
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 63 MB
- Languages: American English
- Released: 2023-09-27
- Data updated: 2026-06-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/def-isl/id6447841373/reviews.md

## What is DEF ISL?

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.

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.

## Key features

- Extensive sign language library
- Over 50,000 signs and phrases
- In-built videos
- Illustrations
- Easy navigation
- Accessible for all ages

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/def-isl/id6447841373/reviews.md

### 1/5 — Crashed

*2023-11-17*

The developer has not responded. Erased and downloaded again but it is crashed.

## Frequently asked questions about DEF ISL

### What is DEF ISL?

DEF ISL is a free educational app designed to make learning sign language easy and accessible. It offers over 50,000 signs and phrases with videos and illustrations for users of all ages.

### How many signs and phrases are available in DEF ISL?

DEF ISL provides access to more than 50,000 easy-to-understand signs and phrases, making it a comprehensive resource for learning.

### Is DEF ISL suitable for children?

Yes, DEF ISL is suitable for both adults and children, as indicated by its age rating of 4+. The app's design aims to be accessible and interesting for younger learners.

### What devices does DEF ISL support?

DEF ISL is currently supported on iPhones and iPods, offering a mobile learning experience for users on these Apple devices.

### When was DEF ISL last updated?

The latest version of DEF ISL is 1.1.2, and it was last updated on February 9, 2026. This indicates a commitment to ongoing development and improvements.

### What is the user rating for DEF ISL?

DEF ISL has a rating of 1.0 stars from 1 rating. This is based on the available data and may not reflect the full user experience.

### Does DEF ISL have ads?

No, DEF ISL does not contain advertisements. The app is free to use without any ad interruptions.

### What is the learning methodology of DEF ISL?

DEF ISL utilizes a visual learning approach, incorporating in-built videos and illustrations to demonstrate signs and phrases. This method aims to make learning engaging and effective.

## Version history (last 4 releases)

### 1.1.2 — 2026-02-09

Performance Improvements

### 1.1.1 — 2025-11-22

Performance Improvements.

### 1.1 — 2024-09-12

1. Performance Improvements

### 1.0 — 2023-09-27

No release notes.

## Apps similar to DEF ISL

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Skillfy](https://appshunter.io/ios/app/skillfy/id1669752560) | — | Free | Education |
| [1ISL Challenge](https://appshunter.io/ios/app/1isl-challenge/id6742008806) | — | Free | Education |
| [Outspokn: English Speaking App](https://appshunter.io/ios/app/outspokn-english-speaking-app/id6737053468) | — | Free | Education |
| [English Tenses Book](https://appshunter.io/ios/app/english-tenses-book/id880168619) | 4.8 (33) | Free | Education |
| [Government Exams Guide](https://appshunter.io/ios/app/government-exams-guide/id1611766114) | 5.0 (2) | $0.99 | Education |
| [ASL Sign language learning](https://appshunter.io/ios/app/asl-sign-language-learning/id6475023042) | 2.8 (12) | Free | Education |

## More apps by SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED

- [Edusign Academy](https://appshunter.io/ios/app/edusign-academy/id1670831570)
- [ICON By Amatya](https://appshunter.io/ios/app/icon-by-amatya/id6444717674)
- [Thela App](https://appshunter.io/ios/app/thela-app/id6448839797)
- [Street Jobs](https://appshunter.io/ios/app/street-jobs/id6502700652)
- [Guest OS](https://appshunter.io/ios/app/guest-os/id6615072568)

All apps by SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED: https://appshunter.io/developer/1656364843

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-08.*