DEF ISL vs TN College
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DEF ISL
Learn sign language with over 50,000 signs and phrases presented through videos and illustrations. This app is designed for both adults and children, including those who are deaf or hearing impaired, to improve communication and societal connection.
- Extensive sign language library
- Over 50,000 signs and phrases
- In-built videos
- Illustrations
- Easy navigation
- Accessible for all ages
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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.
TN College
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TN College app is designed to help students prepare for teacher recruitment and other competitive exams. It offers: • Practice tests with instant feedback • Topic-wise quizzes for focused preparation • Previous year question papers • Study materials in an easy-to-read format • Progress tracking to monitor improvement • Notifications for new practice sets and updates The app provides a simple interface so you can start learning without distractions. You can practice anytime, anywhere, and review your answers to improve performance. Stay organized with bookmarked questions, attempt history, and personalized progress insights. Whether you’re studying at home or on the go, the app helps you prepare more effectively with its exam-focused resources.
Screenshots
Verdict
The clearest difference is update cadence: TN College at every 6 days against DEF ISL's every 12 months. DEF ISL's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DEF ISL ships an update every 12 months, TN College every 6 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | DEF ISL | TN College |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 12 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 63 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED | TN College |
In-app purchases
DEF ISL
No in-app purchases
TN College
No in-app purchases









