# Sign ASL vs TWA Dictionary

The clearest difference is in-app purchases: Sign ASL at none against TWA Dictionary's 5. Sign ASL also leads on iOS requirement (13.0 vs 15.1). TWA Dictionary's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 37 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. TWA Dictionary sells 5 in-app purchases, starting at $4.99 per month. Sign ASL asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for Sign ASL against 4.3 for TWA Dictionary. Both are backed by a comparable volume of ratings — 90 and 33 respectively. Written reviews are what separate them: 63% of Sign ASL's written reviews are positive against 77% of TWA Dictionary's.

Sign ASL ships an update every 37 months, TWA Dictionary every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sign ASL | TWA Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (90 ratings)](https://appshunter.io/ios/app/sign-asl/id1401505280/reviews) | **[4.3 (33 ratings)](https://appshunter.io/ios/app/twa-dictionary/id6465301116/reviews)** |
| Number of ratings | **90** | 33 |
| Positive reviews | 62.5% of reviews | **76.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 3 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Mitchell](https://appshunter.io/developer/998361465) | [TWA Innovations LLC](https://appshunter.io/developer/1706524789) |

## What reviewers say

### Sign ASL

[App page](https://appshunter.io/ios/app/sign-asl/id1401505280)

Access a comprehensive ASL sign dictionary with thousands of words and phrases. This app provides easy access to over 20,000 video demonstrations of American Sign Language signs directly on your mobile device.

**Highlights:** Searchable ASL dictionary, Thousands of words and phrases, Over 20,000 video demonstrations, Mobile access to signs, Compare ASL signs

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to navigate on mobile
- 🚀 Fast loading videos
- 👍 Small app size
- 👍 Excellent resource for ASL
- 👍 Convenient and simple interface

**What reviewers complain about**

- 😠 Inappropriate ad content
- 😠 Must go to search bar for lessons
- 🐛 Videos do not play
- 🐛 Video player covers signs
- 🐛 Videos play too fast

**Reported bugs**

- Videos do not play
- Video player covers signs
- App crashes before loading
- Play button covers signs
- Icons on top of video

**Requested features**

- Playback option to slow down videos
- Button to make video slow down
- Color tape on fingers for clarity
- Option to save signs for later
- "My signs" section


### TWA Dictionary

[App page](https://appshunter.io/ios/app/twa-dictionary/id6465301116)

Master American Sign Language with a comprehensive dictionary featuring over 25,000 signs, variations, and cultural insights. Created by a Deaf team, it offers thematic organization, user-driven content requests, and regular updates for an enhanced learning experience.

**Highlights:** Over 25,000 ASL signs, Sign variations and cultural insights, Thematic organization, User-requested content, Continuous updates, Educational blog on Deaf Culture

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $49.99 | per year |
| Gift Code Month | $4.99 | one-time |
| Gift Code 6 Months | $29.99 | one-time |
| Gift Code 1 Year | $49.99 | one-time |


## Frequently asked questions

### Is Sign ASL free?

Sign ASL is free to download, with no in-app purchases.

### Is TWA Dictionary free?

TWA Dictionary is free to download, with in-app purchases available.

### Which has better reviews, Sign ASL or TWA Dictionary?

TWA Dictionary is rated higher. Sign ASL averages 4.1 out of 5 from 90 ratings, while TWA Dictionary averages 4.3 from 33 ratings.

### Do Sign ASL or TWA Dictionary have ads?

Sign ASL shows ads; TWA Dictionary does not.

### Which is updated more often, Sign ASL or TWA Dictionary?

Sign ASL ships an update every 37 months, and TWA Dictionary every 3 weeks. Most recently, Sign ASL was updated on October 24, 2026 and TWA Dictionary on October 24, 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.*