# DEF ISL vs TN College

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.

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.

## The numbers

| Metric | DEF ISL | TN College |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/def-isl/id6447841373/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 63 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SRIJAY SOFTWARE SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/1656364843) | [TN College](https://appshunter.io/developer/1835361416) |

## What reviewers say

### DEF ISL

[App page](https://appshunter.io/ios/app/def-isl/id6447841373)

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:** macOS Compatibility

**In-app purchases:** none


### TN College

[App page](https://appshunter.io/ios/app/tn-college/id6751488980)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*