# International Sign Language vs SLSL Dictionary

The clearest difference is in-app purchases: SLSL Dictionary at none against International Sign Language's 4. SLSL Dictionary also leads on update cadence (every 5 days vs every 20 months). International Sign Language's advantage is iOS requirement (13.4 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. International Sign Language sells 4 in-app purchases, starting at $5.99 per 3 months. SLSL Dictionary asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for International Sign Language against 5.0 for SLSL Dictionary. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

International Sign Language ships an update every 20 months, SLSL Dictionary every 5 days. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | International Sign Language | SLSL Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/international-sign-language/id1586469292/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/slsl-dictionary/id6445848879/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 199 MB | 52 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Recep Kocur](https://appshunter.io/developer/1318651542) | [Daniel Porteous](https://appshunter.io/developer/1531368370) |

## What reviewers say

### International Sign Language

[App page](https://appshunter.io/ios/app/international-sign-language/id1586469292)

Learn International Sign Language to communicate with the deaf community globally. This app helps bridge communication gaps, fostering confidence and social inclusion for individuals with hearing impairments. It's designed for anyone wanting to learn this visual language.

**Highlights:** Global communication with hearing impaired, Learn visual language, Improve social inclusion, Develop self-confidence, Bridge communication barriers, Suitable for all ages

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 months | $5.99 | per 3 months |
| 6 months | $9.99 | per 6 months |
| 12 months | $9.99 | per year |
| International Sign Language | $10.99 | one-time |


### SLSL Dictionary

[App page](https://appshunter.io/ios/app/slsl-dictionary/id6445848879)

Learn sign language with definitions and videos for each sign. Save custom word lists and use flashcards with spaced repetition for effective revision. Supports English, Sinhala, and Tamil.

**Highlights:** Video demonstrations for signs, Custom word list saving, Flashcard revision feature, Spaced repetition learning, Support for English, Sinhala, and Tamil

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is International Sign Language free?

International Sign Language is free to download, with in-app purchases available.

### Is SLSL Dictionary free?

SLSL Dictionary is free to download, with no in-app purchases.

### Which has better reviews, International Sign Language or SLSL Dictionary?

International Sign Language and SLSL Dictionary are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do International Sign Language or SLSL Dictionary have ads?

Neither International Sign Language nor SLSL Dictionary shows ads.

### Which is updated more often, International Sign Language or SLSL Dictionary?

International Sign Language ships an update every 20 months, and SLSL Dictionary every 5 days. Most recently, International Sign Language was updated on October 24, 2026 and SLSL Dictionary on November 3, 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.*