Comparison

Intersign 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

Intersign ASL

Learn American Sign Language (ASL) through expert-led lessons and interactive games. This app offers over 370 lessons across 17 themed sections, adapting to your learning pace. It includes a built-in dictionary and rewards to keep you motivated.

Highlights
  • Expert-led ASL instruction
  • 370+ lessons in 17 themes
  • Step-by-step learning
  • Integrated ASL dictionary
  • Practice with games and activities
  • Earn rewards and track progress
Features
Read full description

-Expert-Led Instruction Our content is developed by certified Deaf ASL teachers, including university instructors and experienced online educators. -Learn ASL the Fun & Easy Way Over 370 lessons across 17 themed sections. Whether you're new to ASL or looking to sharpen your skills, Intersign adapts to your pace! -Always Free! Intersign is free to download, and our core content will always be free. -Step-by-Step Learning Just getting started? No problem. We'll guide you through ASL from the basics to more advanced signs, at your own speed. -Built-in ASL Dictionary & Glossary Easily look up signs and reinforce your learning with our integrated ASL dictionary and glossary. -Practice with Games & Activities Make learning ASL fun and effective with mini-games and interactive activities designed to keep you engaged. -Earn Rewards as You Learn ASL Stay motivated by unlocking rewards and tracking your progress as you improve your sign language skills. -Sign Variants We know signs can vary by region — we’re working on adding regional sign variants! -Made for Everyone Intersign was created to support anyone who wants to learn Sign Language, regardless of background or experience. Supporting the dissemination of Sign Language means promoting inclusion and equal opportunities for all. Got feedback or ideas? Feel free to reach out anytime at contact@intersign-apps.com License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SLSL Dictionary

Learn Sri Lankan Sign Language with a comprehensive video dictionary. Access over 2,300 signs and 475 phrases, with detailed definitions and regional variants. Features include fingerspelling, customizable lists, and flashcards for effective learning.

Highlights
  • Extensive video library of signs and phrases
  • Fingerspelling for multiple alphabets
  • Multilingual support (English, Sinhala, Tamil)
  • Detailed definitions and regional variants
  • Adjustable video playback speed
  • Customizable sign lists and flashcards
  • Offline access to downloaded content
Features
Read full description

SLSL Dictionary is a free video dictionary of Sri Lankan Sign Language (SLSL), the sign language of the Deaf community in Sri Lanka. Search for a word, open it, and watch a video of the sign. • More than 2,300 signs and 475 everyday phrases, with over 4,400 videos • Fingerspelling for the English, Sinhala and Tamil alphabets • Every entry has its English, Sinhala and Tamil words, and the app itself is available in all three languages • Definitions, notes and related signs, plus regional variants such as the signs used in the North East • Slow a video down to follow the handshape and movement • A new sign of the day • Save signs to your own lists, and share a list with classmates or students • Revise with flashcards, sign to word or word to sign, using random or spaced-repetition review • Light and dark themes • Also on the web at app.srilankansignlanguage.org For Deaf and hard of hearing people, their families and friends, teachers, interpreters, and anyone learning Sri Lankan Sign Language. Free, with no ads, no subscriptions and no in-app purchases. Searching and browsing work offline once the dictionary has downloaded; videos stream, and the ones you have watched recently are kept on your device. The sign videos, images and definitions are provided by Nishani Shamila McCluskey and team, and are licensed under Creative Commons BY-NC-ND 4.0. New and updated entries reach the app automatically.

Screenshots

Intersign ASL4 screens
SLSL Dictionary4 screens

Verdict

The call

The clearest difference is in-app purchases: SLSL Dictionary at none against Intersign ASL's 2. SLSL Dictionary also leads on update cadence (every 5 days vs monthly) and rating (5.0 vs 4.7). Intersign ASL's advantage is ratings volume (4.8K vs 2) and iOS requirement (13.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Intersign ASL sells 2 in-app purchases, starting at $6.99 per month. SLSL Dictionary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SLSL Dictionary holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Intersign ASL has 4.8K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 81% of Intersign ASL's written reviews are positive against 100% of SLSL Dictionary's.

UpkeepUpdate frequency

Intersign ASL ships an update monthly, SLSL Dictionary every 5 days. Both last shipped on November 3, 2026.

Scorecard7 real differences · 3 level
Intersign ASL versus SLSL Dictionary: the parameters behind the verdict, then further details
ParameterIntersign ASLSLSL Dictionary
PriceFreeFree
Rating4.7 (4.8K ratings)5.0 (2 ratings) — better
Positive reviews80.6% of reviews100.0% of reviews — better
Number of ratings4.8K — better2
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size143 MB52 MB
Age rating4+4+
DeveloperIntersign Apps, S.A. de C.V.Daniel Porteous

Customer experience

Intersign ASL

All ratings4,763 ratings
Positive93.6%
Neutral3.5%
Negative3.0%
Written reviews387 reviews
Positive80.6%
Neutral7.8%
Negative11.6%

SLSL Dictionary

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

Bugs and requests

Intersign ASL

Reported bugs

2 issues
  • Inability to submit answers on certain questions
  • Lesson progress reset issues

Requested features

4 requests
  • More advanced lessons and content
  • Option to pay for ad-free experience
  • Ability to report inaccurate signs
  • Personalized learning progress tracking

SLSL Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Intersign ASL

Subscriptions2
  • Intersign Premium - 1 month3 Days trial$6.991 Month
  • Premium Pass - 1 year3 Days trial$49.991 Year
None

SLSL Dictionary

No in-app purchases

Questions

Is Intersign ASL free?
Intersign ASL is free to download, with in-app purchases available.
Is SLSL Dictionary free?
SLSL Dictionary is free to download, with no in-app purchases.
Which has better reviews, Intersign ASL or SLSL Dictionary?
SLSL Dictionary is rated higher. Intersign ASL averages 4.7 out of 5 from 4.8K ratings, while SLSL Dictionary averages 5.0 from 2 ratings.
Do Intersign ASL or SLSL Dictionary have ads?
Neither Intersign ASL nor SLSL Dictionary shows ads.
Which is updated more often, Intersign ASL or SLSL Dictionary?
Intersign ASL ships an update monthly, and SLSL Dictionary every 5 days. Most recently, Intersign ASL was updated on November 3, 2026 and SLSL Dictionary on November 3, 2026.

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