Comparison

Baby Sign Dictionary ASL vs SLSL Dictionary

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

Head to head
About

Baby Sign Dictionary ASL

Teach your baby American Sign Language with this comprehensive dictionary. It features over 340 signs with video demonstrations, categorized for easy learning and practical use in daily routines. Interactive quizzes help reinforce knowledge.

Highlights
  • 340+ ASL signs
  • Video demonstrations
  • Categorized signs
  • Interactive video quiz
  • Favorites list
  • High-quality graphics
Features
Currently charting
Read full description

Take the guess work out of parenting and discover the joy of knowing what your baby has to say before she can talk! One of the most fundamental human desires is to be understood - help your baby communicate by teaching her baby sign language. This app includes approx. 340 signs and over 1 hour of real life video demonstrations! The friendly presenters in the 'Baby Sign Language Dictionary' app will help you to learn to sign with your baby in an engaging and enjoyable way. The keyword signs demonstrated in this video dictionary are based on American Sign Language (ASL). All signs have been carefully selected for their ease of use, helpfulness to carers and appropriateness for baby's interests and daily routine. Each sign has a detailed video tutorial covering information such as: simple instructions on how to perform the sign, clever tips to help you remember the sign and practical suggestions on how to introduce the sign to your baby. The signs are also organized into categories such as: action words, animals, daily routines, feelings and emotions, food, manners and behavior, and nature – all of which are arranged alphabetically for quick and easy searching. To test your baby signing knowledge, the app also comes with a fun interactive video quiz that will help you learn and remember the signs. You can also mark signs as part of your favorites list. Other key features: • high quality graphics and videos optimized for viewing on Retina displays. • optional setting to allow continuous play through of all signs in a category. • swipe through the signs in a category without returning to the menu. • optional setting to view a simplified demonstration for a sign rather than the complete tutorial. This app makes the perfect parent's companion to the popular 'Baby Sign and Learn' animated apps (also available on the App Store). Featuring gentle guidance and practical advice, this app has been designed to help make teaching your baby to sign as easy as waving “bye-bye”! Visit http://www.babysignandlearn.com for more information about baby sign language. NOTE TO PARENTS ABOUT SAFETY • This app contains age-appropriate content for preschoolers. • This app contains items that can be purchased for real money. This app contains a parental gate to stop your little ones making unauthorized purchases. You can turn off in-app purchases completely by disabling in-app purchases in your device’s settings. • This app contains parental gates to prevent your child following links out of the app to websites or social networks, or other apps without your knowledge.

About

SLSL Dictionary

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
Read full description

Enter a search term, select a word, and the app will show you a definition and a video of someone performing the sign. In addition to this basic functionality, the app features support for saving custom lists of words for quick access as well as a flashcard based revision feature with random and spaced repetition learning strategies. The app has support for learning in English, Sinhala, and Tamil.

Screenshots

Baby Sign Dictionary ASL4 screens
SLSL Dictionary4 screens

Verdict

The call

The clearest difference is price: SLSL Dictionary at Free against Baby Sign Dictionary ASL's $2.99. SLSL Dictionary also leads on rating (5.0 vs 4.5) and update cadence (every 2 weeks vs every 15 months). Baby Sign Dictionary ASL's advantage is ratings volume (233 vs 2) and chart position (#166 vs unranked). On ads, in-app purchases 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

SLSL Dictionary is free to download; Baby Sign Dictionary ASL costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SLSL Dictionary holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Baby Sign Dictionary ASL has 233 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 88% of Baby Sign Dictionary ASL's written reviews are positive against 100% of SLSL Dictionary's.

UpkeepUpdate frequency

Baby Sign Dictionary ASL ships an update every 15 months, SLSL Dictionary every 2 weeks. The most recent releases landed on September 27, 2026 and September 11, 2026 respectively.

Scorecard8 real differences · 3 level
Baby Sign Dictionary ASL versus SLSL Dictionary: the parameters behind the verdict, then further details
ParameterBaby Sign Dictionary ASLSLSL Dictionary
Price$2.99Free — better
Rating4.5 (233 ratings)5.0 (2 ratings) — better
Positive reviews87.9% of reviews100.0% of reviews — better
Number of ratings233 — better2
Update frequencyEvery 15 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
Best chart rank#166 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size531 MB52 MB
Age rating4+4+
DeveloperBaby Sign and LearnDaniel Porteous

Customer experience

Baby Sign Dictionary ASL

All ratings233 ratings
Positive87.6%
Neutral3.0%
Negative9.4%
Written reviews91 reviews
Positive87.9%
Neutral4.4%
Negative7.7%

SLSL Dictionary

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Baby Sign Dictionary ASL

Reported bugs

7 issues
  • Text color same as background making words unselectable
  • Words not displaying in library until clicked
  • Dark mode compatibility issues
  • iPhone X and newer screen format incompatibility
  • 64-bit iOS compatibility issues
Show 2 more
  • Text flashing after selection
  • App not updated for modern iOS versions

Requested features

8 requests
  • More words and expanded vocabulary
  • Ability to save/favorite words for quick review
  • Sentence structure and sign combinations lessons
  • Playthrough/autoplay feature for video sequences
  • More challenging quiz options
Show 3 more
  • DLC or paid updates for additional content
  • Full ASL dictionary version for adults
  • Better organization and search functionality

SLSL Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Baby Sign Dictionary ASL

No in-app purchases

None

SLSL Dictionary

No in-app purchases

Questions

Is Baby Sign Dictionary ASL free?
Baby Sign Dictionary ASL costs $2.99, with no in-app purchases.
Is SLSL Dictionary free?
SLSL Dictionary is free to download, with no in-app purchases.
Which has better reviews, Baby Sign Dictionary ASL or SLSL Dictionary?
SLSL Dictionary is rated higher. Baby Sign Dictionary ASL averages 4.5 out of 5 from 233 ratings, while SLSL Dictionary averages 5.0 from 2 ratings.
Do Baby Sign Dictionary ASL or SLSL Dictionary have ads?
Neither Baby Sign Dictionary ASL nor SLSL Dictionary shows ads.
Which is updated more often, Baby Sign Dictionary ASL or SLSL Dictionary?
Baby Sign Dictionary ASL ships an update every 15 months, and SLSL Dictionary every 2 weeks. Most recently, Baby Sign Dictionary ASL was updated on September 27, 2026 and SLSL Dictionary on September 11, 2026.

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