Marlee Signs vs SLSL Dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Marlee Signs
Learn American Sign Language with video lessons from Academy Award-winning actress Marlee Matlin. Master the alphabet, vocabulary, and common expressions at your own pace. Spell out words with a dedicated signing feature.
- Signed alphabet instruction
- Basic vocabulary lessons
- Common expression videos
- Spell any word in signs
- Slow motion video playback
- Progress tracking
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Learn American Sign Language with Marlee Signs© from Marlee Matlin – Academy Award© winning Deaf Actress. Ever wanted to learn more about Sign Language? Marlee Signs© is for you. •••••••••••••••••••••••••••••••••••••••••••••••••••••••• FEATURED ON: • Apple’s “New & Noteworthy” section! • The App Store’s #19 Top Free Education app! • CBS and KCAL news! COVERED BY: • Rob Rich of 148apps.com! • Emily Price of Mashable.com! • Jennifer Beese of TodaysiPhone.com! • Brittany Chan of iMedicalApps.com! •••••••••••••••••••••••••••••••••••••••••••••••••••••••• THE A-B-Cs OF A.S.L. Marlee Signs© is the perfect app for learning to express yourself in American Sign Language. This app will teach you the fundamentals of ASL – from the signed alphabet and basic vocabulary through to common expressions in everyday life – using high-quality video demonstrations starring Marlee Matlin herself. PRACTICE AT YOUR PACE Each lesson is broken down into individual videos, making it easy to learn at your own pace. The app checks off completed lessons so that you can quickly pick up where you left off, and the “Slow Motion” setting enables you to watch any video in greater detail. You even get your first lesson pack free! SPELL IT OUT Need to spell something in signs? Let Marlee help you with the “Spell” section. This nifty feature shows you how to spell any word in signs. Simply type the word and watch Marlee spell it for you! GET YOUR HANDS ON MORE Marlee Signs© offers a library of useful lesson packs that will help build your understanding while motivating you to learn more. Tap into a dimension of new ideas, new perspectives and a new lens through which to view your world. _________________________________________________________________________________________________ We are proud to call Marlee Signs a Shiny MEDL Object. You can see all of them at MEDLmobile.com.
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 review sentiment: SLSL Dictionary at 100% against Marlee Signs's 45%. SLSL Dictionary also leads on rating (5.0 vs 3.3) and in-app purchases (none vs 5). Marlee Signs's advantage is ratings volume (190 vs 2) and iOS requirement (12.0 vs 16.0). On price, 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
Both are free to download. Marlee Signs sells 5 one-off in-app purchases. SLSL Dictionary asks for nothing beyond the download.
SLSL Dictionary holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Marlee Signs has 190 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 45% of Marlee Signs's written reviews are positive against 100% of SLSL Dictionary's.
Marlee Signs ships an update every 2 months, SLSL Dictionary every 2 weeks. The most recent releases landed on June 9, 2026 and September 11, 2026 respectively.
| Parameter | Marlee Signs | SLSL Dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (190 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 45.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 190 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 108 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | MEDL Mobile Enterprises, LLC | Daniel Porteous |
Customer experience
Marlee Signs
SLSL Dictionary
Bugs and requests
Marlee Signs
Reported bugs
4 issues- Videos not playing, showing black screens
- Purchased lesson packs not restoring after reinstall
- App crashing or freezing on certain devices
- Connectivity issues even with good internet
Requested features
4 requests- Add more lesson packs and content
- Improve offline access and video playback
- Implement better search and navigation
- Add speech-to-sign and sign-to-speech features
SLSL Dictionary
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Marlee Signs
- Around You Lesson Pack$1.99
- Home Lesson Pack$1.99
- Around Town Lesson Pack$1.99
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- Around World Lesson Pack$1.99
- Baby Signs Lesson Pack$1.99
SLSL Dictionary
No in-app purchases
Questions
Is Marlee Signs free?
Is SLSL Dictionary free?
Which has better reviews, Marlee Signs or SLSL Dictionary?
Do Marlee Signs or SLSL Dictionary have ads?
Which is updated more often, Marlee Signs or SLSL Dictionary?
Other comparisons
