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.
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.
- 340+ ASL signs
- Video demonstrations
- Categorized signs
- Interactive video quiz
- Favorites list
- High-quality graphics
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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.
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.
- Video demonstrations for signs
- Custom word list saving
- Flashcard revision feature
- Spaced repetition learning
- Support for English, Sinhala, and Tamil
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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
Verdict
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
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.
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.
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.
| Parameter | Baby Sign Dictionary ASL | SLSL Dictionary |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.5 (233 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 87.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 233 — better | 2 |
| Update frequency | Every 15 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #166 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 531 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Baby Sign and Learn | Daniel Porteous |
Customer experience
Baby Sign Dictionary ASL
SLSL Dictionary
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
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- 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
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- 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
Baby Sign Dictionary ASL
No in-app purchases
SLSL Dictionary
No in-app purchases
Questions
Is Baby Sign Dictionary ASL free?
Is SLSL Dictionary free?
Which has better reviews, Baby Sign Dictionary ASL or SLSL Dictionary?
Do Baby Sign Dictionary ASL or SLSL Dictionary have ads?
Which is updated more often, Baby Sign Dictionary ASL or SLSL Dictionary?
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