Comparison

DEF ISL vs TN College

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Extensive sign language library
  • Over 50,000 signs and phrases
  • In-built videos
  • Illustrations
  • Easy navigation
  • Accessible for all ages
Features
Read full description

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.

About

TN College

Features
Read full description

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

DEF ISL4 screens
TN College4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
DEF ISL versus TN College: the parameters behind the verdict, then further details
ParameterDEF ISLTN College
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size63 MB46 MB
Age rating4+4+
DeveloperSRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITEDTN College

In-app purchases

None

DEF ISL

No in-app purchases

None

TN College

No in-app purchases

Questions

Is DEF ISL free?
DEF ISL is free to download, with no in-app purchases.
Is TN College free?
TN College is free to download, with no in-app purchases.
Do DEF ISL or TN College have ads?
Neither DEF ISL nor TN College shows ads.
Which is updated more often, DEF ISL or TN College?
DEF ISL ships an update every 12 months, and TN College every 6 days. Most recently, DEF ISL was updated on November 3, 2026 and TN College on October 30, 2026.

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