Comparison

Intersign ASL vs Deduci

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

Deduci

Transform study materials like notes, PDFs, and voice memos into interactive quizzes. Engage in solo study, timed challenges, or multiplayer games. It's designed to make learning engaging and effective for various subjects, including technical ones.

Highlights
  • Create quizzes from notes, PDFs, and voice memos
  • Solo study and timed challenges
  • Multiplayer quiz face-offs and turn-based matches
  • Specialized generation for technical subjects
  • Typing labs and study tools
  • Share private quiz sets
Features
Read full description

Deduci Deduci turns topics, notes, PDFs, and voice memos into playable quizzes. Study solo, race the clock, or challenge friends in multiplayer face-offs and turn-based matches. Type in any topic to generate a fresh set of questions, or upload documents and recordings to turn your class material into something interactive. For math and other technical subjects, Deduci uses a specialized question-generation approach to better handle quantitative prompts and formula-heavy material. Create private quiz sets from your own material, sharpen recall with typing labs and study tools, and keep practicing the subjects you actually care about. Share private sets with friends, browse opt-in public profiles by interest, and generate questions to ask your professor during the lecture to enhance your engagement.

Screenshots

Intersign ASL4 screens
Deduci4 screens

Verdict

The call

The clearest difference is update cadence: Deduci at every 3 days against Intersign ASL's monthly. Deduci also leads on rating (5.0 vs 4.7). Intersign ASL's advantage is ratings volume (4.8K vs 1) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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 and Deduci sells 1 in-app purchase, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Deduci 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Intersign ASL ships an update monthly, Deduci every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Intersign ASL versus Deduci: the parameters behind the verdict, then further details
ParameterIntersign ASLDeduci
PriceFreeFree
Rating4.7 (4.8K ratings)5.0 (1 ratings) — better
Positive reviews80.6% of reviews—
Number of ratings4.8K — better1
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size143 MB13 MB
Age rating4+12+
DeveloperIntersign Apps, S.A. de C.V.Sarah Letchford

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

Deduci

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
1 purchases

Deduci

Subscriptions1
  • Deduci Pro$5.991 Month

Questions

Is Intersign ASL free?
Intersign ASL is free to download, with in-app purchases available.
Is Deduci free?
Deduci is free to download, with in-app purchases available.
Which has better reviews, Intersign ASL or Deduci?
Deduci is rated higher. Intersign ASL averages 4.7 out of 5 from 4.8K ratings, while Deduci averages 5.0 from 1 ratings.
Do Intersign ASL or Deduci have ads?
Neither Intersign ASL nor Deduci shows ads.
Which is updated more often, Intersign ASL or Deduci?
Intersign ASL ships an update monthly, and Deduci every 3 days. Most recently, Intersign ASL was updated on November 3, 2026 and Deduci on October 31, 2026.

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