Asterics AAC

Overview

Asterics AAC is a browser-based augmentative and alternative communication tool for people who need a configurable way to build and use communication grids. Its broad access options and ability to work offline suit users who need to tailor interaction to their abilities and devices. It is a strong free option for flexible grid-based communication, though losing an online account password also means losing its data.

The grids combine communication with practical controls: actions can operate running AsTeRICS Framework models, openHAB devices, or programs and devices that expose an HTTP REST API. Media functions add web radio, YouTube controls within the app, and podcast playback. These extras matter most to users who want communication and device interaction in one interface; they are less compelling for someone seeking only a straightforward phrase board.

Asterics AAC is made by the AsTeRICS Foundation, founded in 2017 to bring project results to people with disabilities, organize workshops, and coordinate projects. See AAC Communication Software for more choices.

Key features

Grids built around the user

Layouts are fully customizable and use a hybrid symbol system. Elements can show labels or images, speak a label or custom text, add chosen words to a sentence, and offer word predictions. That mix supports both direct phrase selection and composing longer messages, with room to adapt the grid rather than accept a fixed arrangement.

Broad access and speech options

Users can select elements by touch, mouse, keyboard, external switch, scanning, hovering, microphone input, or AsTeRICS Framework events such as eye or head movement. Direction, Huffman, and sequential input are also supported. This breadth makes the software relevant across varied access needs, although the available computer voices depend on the platform and browser, so speech options may differ between devices.

Connected controls and media

Grid actions can control compatible AsTeRICS Framework models, openHAB devices, and services or devices with an HTTP REST API. Users can also search for and play web radio, control YouTube videos inside the app, and play podcasts. These functions extend the grid beyond conversation, especially for users already working with compatible connected systems.

Offline operation and account safeguards

After the first browser visit caches the app, it can be reopened and used offline. Offline users keep personalized data in that browser; registered users can synchronize grids across devices. Online personalized data is end-to-end encrypted with the user’s password, and the foundation says it cannot access it in unencrypted form. The trade-off is consequential: a forgotten password cannot be recovered, and neither can the associated account data. Downloading backups is therefore important. Online data is deleted after 365 days without a login.

Help opens at the relevant documentation section through the help icon or F1, a useful route when configuring a specialized grid.

Pricing

Asterics AAC has one plan: Free — 0.00 USD per free (billed). The software remains free and open-source, with no free trial because there is no paid tier to trial. It fits individuals and organizations looking for customizable AAC without a subscription charge.

The main qualification is cross-device synchronization: it depends on funding for server costs. Offline use keeps personalized data local to the browser, so it does not provide that same cross-device continuity. Online accounts also carry the password-recovery risk and the 365-day inactivity deletion rule; keep backups if the grids matter. No seat or usage quota is stated.

Platforms

Asterics AAC runs in web browsers on Android, iOS, Windows, macOS, and Linux, and is also offered as self-hosted software. This browser-centered approach spans desktop and mobile systems, while speech voices can vary with the browser and platform. Offline use requires an initial visit to cache the app.

Who it's for

Choose Asterics AAC if you need a free, adaptable communication grid with multiple input methods, sentence building, word prediction, or links to compatible smart-home and assistive systems. It is also a good fit when browser-based offline use matters. Look elsewhere if recovering an online account without a password reset is essential, or if dependable cloud synchronization is a requirement; synchronization relies on server funding.

Pros and cons

• Pros: Fully customizable grids combine labels or images with speech, sentence building, and prediction, letting users shape the interface around communication needs.
• Pros: Touch, switch, scanning, hovering, microphone, and other input approaches support a wide range of access requirements.
• Pros: Cached browser use works offline, while online personalized data is end-to-end encrypted.
• Pros: Grid actions can connect communication to compatible assistive models, openHAB devices, and HTTP REST services.
• Cons: Lost passwords and account data cannot be recovered, so online users need to maintain backups.
• Cons: Cross-device synchronization depends on funding, limiting how confidently users can rely on it for continuity.
• Cons: Available voices vary by browser and platform, making speech output less consistent across devices.

Alternatives

Cboard is worth considering for users who want online neural voices, board sharing and publishing, tile copying, and usage analytics in a free plan across Android, iOS, macOS, web, and Windows.

Jellow offers a free downloadable AAC communicator and also provides a PDF booklet and flashcards; consider it if those materials suit your communication setup.

Speech Assistant AAC has a free Android basic version, with a full-version upgrade at 9.99 USD per once (one-time payment, no subscription). Choose it if you prefer an Android app and are willing to pay once for the upgrade.

SymboTalk keeps core app features free on Android and web, but charges for cloud sharing, synchronization, and backup. It may suit users who want those cloud functions and accept paid access.

TD Snap is free to download on iOS and Windows, with speaking requiring a monthly subscription after a one-month free trial. It is an option for users comfortable with that subscription arrangement.

Spoken is another free-plan option for macOS, iOS, and Android.

Weave Chat AAC is a free option for iOS and Android.

Fast AAC is a freemium option for iOS.

Verdict

Asterics AAC is the right choice for people who need a free, highly adaptable AAC grid with varied access methods, offline browser use, and the option to connect compatible devices and services. Its strongest reason to choose it is the combination of customization and broad input support at no cost. Its clearest reason to look elsewhere is the lack of password recovery, compounded by synchronization that depends on server funding.