Comparison

ASL Dictionary vs iSigner

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

Head to head
About

ASL Dictionary

This app provides a comprehensive video dictionary for American Sign Language, featuring over 5,200 signed words, phrases, and idioms. It allows users to translate English into ASL, covering the alphabet, numbers, and common expressions. The educational tool is designed for learning sign language through visual instruction.

Highlights
  • Over 5,200 signed words
  • English to ASL translation
  • Alphabet and numerical system
  • Common English phrases and idioms
  • Finger spelled alphabet
  • Offline access to all videos
  • Dark Mode
Features
Currently charting
Read full description

ASL Sign Language Dictionary. Over 5,200 Signed words in ASL. The most complete ASL American Sign Language Video Dictionary. Translate English into ASL, from A-Z, plus the entire numerical system, common English phrases, symbols and much more. A must have educational iPhone, and iPad app. **One time fee, no ad's and nothing else to pay for. FEATURES • Over 5,200 signs from A-Z • 765 Multiple meaning words signed • Multiple word signs such as “don’t want” & “hard of hearing” • 473 Idioms translated • Time • Money • Dates, Months, Years • General numbers • Finger Spelled Alphabet • Symbols • Common Phrases like “You’re too late” • Dark Mode (Found under device Settings, Display and Brightness) New feature: Swipe video screen to load next or previous video Learn Sign Language, by watching our professional Sign Language interpreter and instructor sign over 5,200 individual and multiple word signs. ASL is the first language for people who are deaf. OVER 5,200 SIGNED WORDS **No Internet required. (All 5200 videos are included in the ASL Dictionary) **Note: If you are a hearing person, there is no sound with this application. **Comments, questions or support, please contact us at appsavers@gmail.com ***Guaranteed to work perfectly. If you have an issue please email us for help at appsavers@gmail.com Thank You*** THANK YOU

About

iSigner

This app provides the world's first and only comprehensive Shanghai sign language dictionary. It features a vocabulary of 4000 signs derived from extensive video content, influencing sign languages across China and other Asian regions.

Highlights
  • Shanghai sign language dictionary
  • 4000 video signs
  • Influential sign language variant
  • Comprehensive vocabulary
Features
Read full description

1. The first and only app of Shanghai sign language dictionary in the world. 2. iSigner 1.0 is featured with a vocabulary of 4000 Shanghai Sign language ( a variant of Chinese Sign Language) from hundreds of hours of original video, which has exerted great influence on most parts of China, and even the sign languages of Hong Kong, Taiwan, Singapore, Malaysia and other countries and regions.

Screenshots

ASL Dictionary4 screens
iSigner4 screens

Verdict

The call

The clearest difference is review sentiment: ASL Dictionary at 82% against iSigner's 0%. ASL Dictionary also leads on rating (4.7 vs 1.0) and in-app purchases (none vs 1). iSigner's advantage is price (Free vs $4.99) and iOS requirement (10.0 vs 12.0). On update cadence, ads 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

iSigner is free to download; ASL Dictionary costs $4.99 up front. iSigner sells 1 one-off in-app purchase. ASL Dictionary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ASL Dictionary holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: ASL Dictionary has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of ASL Dictionary's written reviews are positive against 0% of iSigner's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.

Scorecard8 real differences · 3 level
ASL Dictionary versus iSigner: the parameters behind the verdict, then further details
ParameterASL DictionaryiSigner
Price$4.99Free — better
Rating4.7 (1.3K ratings) — better1.0 (2 ratings)
Positive reviews82.1% of reviews — better0.0% of reviews
Number of ratings1.3K — better2
Update frequencyEvery 5 monthsEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#87 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.010.0 — better
Further details — not scored
Size154 MB27 MB
Age rating4+4+
DeveloperSoftware Studios LLC焕 盛

Customer experience

ASL Dictionary

All ratings1,326 ratings
Positive95.3%
Neutral2.9%
Negative1.7%
Written reviews78 reviews
Positive82.1%
Neutral7.7%
Negative10.3%

iSigner

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

ASL Dictionary

Reported bugs

3 issues
  • Some videos stop playing or don't load properly
  • Loop feature not working consistently
  • Compatibility issues with newer iOS versions

Requested features

5 requests
  • Add more common phrases and conversational signs
  • Provide written explanations and instructions for signs
  • Improve video quality and clarity
  • Add bookmarking/favorites feature to save frequently used signs
  • Implement a search function to quickly find specific signs

iSigner

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ASL Dictionary

No in-app purchases

1 purchases

iSigner

One-time1
  • 上海手语常用词库$12.99

Questions

Is ASL Dictionary free?
ASL Dictionary costs $4.99, with no in-app purchases.
Is iSigner free?
iSigner is free to download, with in-app purchases available.
Which has better reviews, ASL Dictionary or iSigner?
ASL Dictionary is rated higher. ASL Dictionary averages 4.7 out of 5 from 1.3K ratings, while iSigner averages 1.0 from 2 ratings.
Do ASL Dictionary or iSigner have ads?
Neither ASL Dictionary nor iSigner shows ads.
Which is updated more often, ASL Dictionary or iSigner?
ASL Dictionary ships an update every 5 months, and iSigner every 5 months. Most recently, ASL Dictionary was updated on September 22, 2026 and iSigner on June 1, 2026.

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