Comparison

Sign ASL vs TWA Dictionary

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

Head to head
About

Sign ASL

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
Read full description

Search and compare thousands of words and phrases in American Sign Language. Easily find and view signs on your mobile device. Over 20,000 videos in this video dictionary. For more information please visit www.signasl.org

About

TWA Dictionary

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
Read full description

Looking for a great ASL resource? Our ASL Dictionary, created by a 100% Deaf team, includes over 25,000 signs along with sign variations, Deaf signers from diverse backgrounds, and an array of features to enhance your learning experience! What’s the Sign? ASL Dictionary is your ultimate resource for mastering American Sign Language, designed and brought to you by the Deaf community. Key Features: Extensive Library: Access a comprehensive collection of over 25,000 signs, including regional variations and cultural insights. Thematic Organization: Easily navigate through themed categories tailored to your interests. Tagged for Every Occasion: Quickly find the signs you need, whether for a job interview or a specific topic. Continuous Updates: Regular updates ensure fresh and relevant content. Educational Blog: Explore Deaf Culture with insightful posts on community topics. User-Driven Content: Can’t find a sign? Request new signs or sentence examples, and help expand the dictionary. Easy Navigation: An intuitive interface makes your learning journey smooth and enjoyable. Subscription Details: What’s the Sign? ASL Dictionary offers flexible subscription plans, including monthly and annual options. Start your learning journey with a three-day free trial. Subscriptions automatically renew unless canceled, and you can manage them through your account settings. Discover the richness of American Sign Language with What’s the Sign? ASL Dictionary – where learning becomes a personalized, ongoing experience. Privacy Policy: https://twadictionary.com/privacy/ Terms of Use: https://twadictionary.com/terms/ Also available in the app.

Screenshots

Sign ASL4 screens
TWA Dictionary4 screens

Verdict

The call

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.

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard6 real differences · 4 level
Sign ASL versus TWA Dictionary: the parameters behind the verdict, then further details
ParameterSign ASLTWA Dictionary
PriceFreeFree
Rating4.1 (90 ratings)4.3 (33 ratings) — better
Positive reviews62.5% of reviews76.9% of reviews — better
Number of ratings90 — better33
Update frequencyEvery 37 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size3 MB41 MB
Age rating4+12+
DeveloperDaniel MitchellTWA Innovations LLC

Customer experience

Sign ASL

All ratings90 ratings
Positive76.7%
Neutral6.7%
Negative16.7%
Written reviews40 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

TWA Dictionary

All ratings33 ratings
Positive78.8%
Neutral6.1%
Negative15.2%
Written reviews13 reviews
Positive76.9%
Neutral0.0%
Negative23.1%

Bugs and requests

Sign ASL

Reported bugs

21 issues
  • Videos do not play
  • Video player covers signs
  • App crashes before loading
  • Play button covers signs
  • Icons on top of video
Show 16 more
  • Videos play too fast
  • Formatting problems
  • Difficulty viewing signed examples
  • Video player updated unhelpfully
  • Sign videos are only a few seconds long
  • Controls for video were at the bottom of the screen
  • Videos are really hard to see what fingers they are using
  • View of the hands signing is blocked by the play button
  • Bug fix needed
  • Icons for play, back and forward is right on top of the video
  • Play and stop is on top of the video so you can’t see the sign
  • Can’t make video zoom in or out
  • Slur appears in search results
  • App kicks me out before it even loads
  • One of the signs is very wrong
  • Using videos without permission

Requested features

8 requests
  • 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
Show 3 more
  • "Frequently used" section
  • Ability to zoom in/out on videos
  • Simple combinations and other gestures

TWA Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sign ASL

No in-app purchases

5 purchases

TWA Dictionary

Subscriptions2
  • Pro Monthly3 Days trial$4.991 Month
  • Pro Yearly3 Days trial$49.991 Year
One-time3
  • Gift Code Month$4.99
  • Gift Code 6 Months$29.99
  • Gift Code 1 Year$49.99

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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