Comparison

Jellow AAC Communicator vs Isaac AAC

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

Head to head
About

Jellow AAC Communicator

This communication system uses icons and images to help individuals with speech difficulties express themselves. It aids in learning words and categories through visual associations, allowing users to build sentences and speak them aloud with various accents.

Highlights
  • Icon-based communication
  • Customizable icon boards
  • Sentence generation
  • Multiple accent options
  • Vocabulary learning
  • Keyboard for new sentences
Features
Read full description

Jellow Communicator is a friendly Augmentative and Alternative Communication (AAC) system that uses icons/images to enable speech. This freely downloadable app can be used for communication by those learning to speak or those having difficulty with speech. Jellow can also be used by toddlers and early learners to learn words and categories frequently used in their daily lives. Jellow’s colorful and friendly icons can help children develop an association between pictures and their corresponding word labels. By Using Make My Board(My Boards), you can add or edit your own customized icons and their expressive text. Jellow has a simple, visually appealing, and easy-to-learn interface consisting central 'category' buttons and 'expressive' side buttons. The content of the app is organized into basic category buttons that make it easy for the user to access and find desired icons. The user can make the app speak out sentences by simply clicking on any of the category buttons followed by any of the expressive buttons. Jellow has around 1000 icons and over 10,000 lines of pre-programmed text. In addition, using the 'keyboard' feature, the user can also generate new sentences and use the app to speak them out aloud. The app allows the user to choose from multiple accents American, British, Australia and South Africa. Jellow is developed at the IDC School of Design at the Indian Institute of Technology Bombay (IIT-B) located in Mumbai. The application is still under development. If you have any suggestions for improvement, please submit your feedback/comments via email at jellowcommunicator@gmail.com. For further information on Jellow and FAQs, please visit www.jellow.org/

About

Isaac AAC

This communication app uses voice synthesis, visual symbols, and AI-powered predictive text to help individuals with communication challenges express themselves. It aims to enhance independence and quality of life for users of all ages.

Highlights
  • Advanced voice synthesis
  • Intuitive visual symbols
  • AI-powered predictive text
  • Customizable communication platform
  • Supports independence and quality of life
Features
Read full description

Our breakthrough Augmentative and Alternative Communication app Isaac AAC transforms how individuals with communication challenges effectively and confidently express their thoughts. Designed with deep understanding of the needs of users, parents, speech therapists, educational institutions. Isaac AAC integrates advanced voice synthesis, intuitive visual symbols, and AI-powered predictive text algorithms, creating a seamless and customizable communication platform. Our goal is to open new possibilities for users of all ages, support their independence, and improve their quality of life. We present a solution that promotes inclusion and ensures every voice will be heard. Functions are available only with a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Jellow AAC Communicator4 screens
Isaac AAC4 screens

Verdict

The call

The clearest difference is rating: Isaac AAC at 5.0 against Jellow AAC Communicator's 4.0. Isaac AAC also leads on update cadence (weekly vs every 2 months). Jellow AAC Communicator's advantage is in-app purchases (none vs 2) and ratings volume (9 vs 1). On price, ads, device support and iOS requirement 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. Isaac AAC sells 2 in-app purchases, starting at $7.99 per month. Jellow AAC Communicator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Isaac AAC holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Jellow AAC Communicator has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Jellow AAC Communicator ships an update every 2 months, Isaac AAC weekly. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
Jellow AAC Communicator versus Isaac AAC: the parameters behind the verdict, then further details
ParameterJellow AAC CommunicatorIsaac AAC
PriceFreeFree
Rating4.0 (9 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.014.0
Further details — not scored
Size66 MB148 MB
Age rating4+4+
DeveloperRavi PoovaiahAdrian Golian

Customer experience

Jellow AAC Communicator

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Isaac AAC

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Jellow AAC Communicator

No in-app purchases

2 purchases

Isaac AAC

Subscriptions1
  • Monthly Subscription ISAAC$7.991 Month
One-time1
  • Isaac$4.99

Questions

Is Jellow AAC Communicator free?
Jellow AAC Communicator is free to download, with no in-app purchases.
Is Isaac AAC free?
Isaac AAC is free to download, with in-app purchases available.
Which has better reviews, Jellow AAC Communicator or Isaac AAC?
Isaac AAC is rated higher. Jellow AAC Communicator averages 4.0 out of 5 from 9 ratings, while Isaac AAC averages 5.0 from 1 ratings.
Do Jellow AAC Communicator or Isaac AAC have ads?
Neither Jellow AAC Communicator nor Isaac AAC shows ads.
Which is updated more often, Jellow AAC Communicator or Isaac AAC?
Jellow AAC Communicator ships an update every 2 months, and Isaac AAC weekly. Most recently, Jellow AAC Communicator was updated on September 22, 2026 and Isaac AAC on October 2, 2026.

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