Comparison

Concise ISL vs International Sign Language

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

Head to head
About

Concise ISL

Learn Irish Sign Language with a comprehensive video dictionary featuring around 1000 signs. Explore signs by category, search efficiently, and access offline content. Ideal for learners of all ages.

Highlights
  • 1000+ ISL signs in video format
  • High-quality image support for signs
  • Categorized sign organization
  • Efficient search functionality
  • Offline use after initial download
  • Child-appropriate content
  • Information on ISL history and grammar
Features
Read full description

Concise ISL is an Irish Sign Language (ISL) video dictionary which contains approximately 1000 signs. This mobile app was developed by two young Irish engineers, one of whom is a life-long practitioner of Irish Sign Language, in response to the need for digital resources to support sign language learning in Ireland. Our aim is to provide a comprehensive ISL dictionary system in an easy-to-use form. --------------- Features --------------- Each sign contained within Concise ISL is presented in video form and accompanied by high quality images of the component signs for each hand. All signs can be sorted by category, an organisational approach chosen to support learning. Specific words and categories can be easily found within Concise ISL, using a simple and efficient search interface, swipe gestures, sliding menus and other intuitive interaction mechanisms. This app is designed to be child-appropriate, with the inclusion of a large number of signs in categories such as Animals, Colours, Food, Sports and many others. Through the inclusion of signs such as "texting", "tablet", "facebook" and many more, this ISL dictionary reflects the modern context of the language. Concise ISL currently includes approximately 1000 signs, a figure which we have continuously strived to increase. Concise ISL supports offline use. A data connection is required to download signs for the first time. These videos are then stored on-device for subsequent viewing offline. This approach allows the inclusion of such a large number of signs without imposing the consumption of a significant amount of on-device memory on all users. The video size has been carefully calculated to reduce bandwidth consumption. Concise ISL also includes a number of additional sections containing information concerning the history of ISL, the grammatical structure of the language and more. We hope you enjoy using Concise ISL! Kevin & Micheál

About

International Sign Language

Learn International Sign Language to communicate with the deaf community globally. This app helps bridge communication gaps, fostering confidence and social inclusion for individuals with hearing impairments. It's designed for anyone wanting to learn this visual language.

Highlights
  • Global communication with hearing impaired
  • Learn visual language
  • Improve social inclusion
  • Develop self-confidence
  • Bridge communication barriers
  • Suitable for all ages
Features
Read full description

With International Sign Language, it is possible to communicate with the hearing impaired not only in any country but also all over the world. International Sign is a language which is used in a variety of different contexts, particularly at international meetings such as the World Federation of the Deaf congress, events such as the Deaflympics and the Miss & Mister Deaf World, and informally when travelling and socialising. Communication difficulties and emotional problems experienced by the hearing impaired can cause a lack of self-confidence in their social lives. All these negative effects of hearing loss also affect the quality of life of the child and the individual. As the number of people communicating with the Hearing Impaired and learning sign language increases, it will be much easier for individuals with speech and hearing impairments to establish a bond of belonging to the society, develop their self-confidence, and find a place for themselves in society and social life. Hearing and speaking individuals will be able to learn sign language and it will help the Hearing Impaired to overcome the communication barrier in front of them. Hearing and speaking individuals, by learning sign language, will help the deaf overcome the barrier of communication and improve their daily quality of life in terms of courtesy, respect, family, friends, school and work. What is Sign Language? Sign language is a visual language created by hearing impaired people using hand movements and facial expressions when communicating with each other. Feedback We will continue to evaluate and update it, taking into account all kinds of feedback and suggestions from you. If you have suggestions or feedback, you can reach us in the feedback section in the application. Wishing you can learn sign language We wish you a nice day.

Screenshots

Concise ISL4 screens
International Sign Language4 screens

Verdict

The call

The clearest difference is price: International Sign Language at Free against Concise ISL's $1.99. Concise ISL's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 13.4). On update cadence, 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

International Sign Language is free to download; Concise ISL costs $1.99 up front. International Sign Language sells 4 in-app purchases, starting at $5.99 per 3 months. Concise ISL asks for nothing beyond the download.

UpkeepUpdate frequency

Concise ISL ships an update every 25 months, International Sign Language every 20 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Concise ISL versus International Sign Language: the parameters behind the verdict, then further details
ParameterConcise ISLInternational Sign Language
Price$1.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—2 — better
Update frequencyEvery 25 monthsEvery 20 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.4
Further details — not scored
Size25 MB199 MB
Age rating4+4+
DeveloperKevin DohertyRecep Kocur

Customer experience

Concise ISL

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

International Sign Language

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Concise ISL

No in-app purchases

4 purchases

International Sign Language

Subscriptions3
  • 3 months$5.993 Months
  • 6 months$9.996 Months
  • 12 months$9.991 Year
One-time1
  • International Sign Language$10.99

Questions

Is Concise ISL free?
Concise ISL costs $1.99, with no in-app purchases.
Is International Sign Language free?
International Sign Language is free to download, with in-app purchases available.
Do Concise ISL or International Sign Language have ads?
Neither Concise ISL nor International Sign Language shows ads.
Which is updated more often, Concise ISL or International Sign Language?
Concise ISL ships an update every 25 months, and International Sign Language every 20 months. Most recently, Concise ISL was updated on November 2, 2026 and International Sign Language on November 3, 2026.

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