
Asterics AAC
Summary
Asterics AAC is a web-based augmentative and alternative communication app for creating customizable grids. Grid cells can show text or images, speak labels or custom text, build sentences from selected words, and suggest words. Users can choose cells through touch, mouse, keyboard, external switches, scanning, hovering, microphone input, or AsTeRICS Framework events such as eye or head movement. Computer voices are available, with options depending on the browser and platform. Grid actions can operate AsTeRICS Framework models, openHAB devices, and programs or devices with an HTTP REST API. The app also supports web radio, YouTube control, and podcasts. After its first browser visit caches the app, it can run offline. Registered users can sync grids across devices; online personal data is encrypted with the user's password, while offline data stays in the browser. Asterics AAC is free and open-source, with browser support on Android, iOS, Windows, macOS, and Linux.
Who it is for
It is intended for people who use augmentative and alternative communication and need customizable grids or varied input methods. It may also suit users who want grid actions to connect with supported smart-home or other HTTP REST API devices.
What is good
- Grid cells can combine images, speech, sentences, and predictions.
- Supports touch, switches, scanning, and other input methods.
- Can be used offline after the initial browser visit.
- Online personal data is end-to-end encrypted with the user's password.
- Free and open-source.
What to know first
- Available computer voices depend on platform and browser.
- Online data is deleted after 365 days without login.
- Lost passwords and associated account data cannot be recovered.
- Cross-device sync depends on funding for server costs.
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Asterics AAC: the full review
Asterics AAC offers flexible grids, multiple ways to select items, and offline use after caching. Online users should keep backups because account data cannot be recovered after a lost password.
Overview
Asterics AAC is a web-based augmentative and alternative communication app for building customizable grids. Grid elements can combine labels or images with spoken output, sentence building, and word prediction. The range of access methods and layout options lets users shape the interface around how they communicate and interact.
Beyond communication, grid actions can connect to running AsTeRICS Framework models, openHAB devices, and programs or devices that provide an HTTP REST API. The app also includes ways to search for and play web radio, control YouTube videos within the app, and play podcasts.
The AsTeRICS Foundation, founded in February 2017, works to bring project results to people with disabilities, organize workshops, and coordinate projects. For more options, see AAC Communication Software.
Key features
Customizable communication grids
Grid elements may show labels or images, speak an element label or custom text, collect selected words into a sentence, and offer word predictions. Layout customization is fully customizable, and the symbol system is hybrid.
Multiple ways to select grid elements
Users can select elements with touch, a mouse, a keyboard, an external switch, scanning, hovering, microphone input, or AsTeRICS Framework events such as eye or head movement. Direction, Huffman, and sequential input are also supported.
Speech and connected services
Speech output uses computer voices, with available voices depending on the platform and browser. Grid actions can control supported smart-home devices and software through AsTeRICS Framework models, openHAB, or an HTTP REST API.
Media and offline access
Asterics AAC can search for and play web radio, control YouTube videos inside the app, and play podcasts. After the first browser visit downloads the app to its cache, it can be reopened and used offline.
Synchronization and privacy
Registered users can synchronize grids across devices. Personalized data for online users is end-to-end encrypted with the user’s password, which the foundation says means it cannot access the data in unencrypted form. Users who work offline keep personalized data locally in the browser. Online user data is deleted after 365 days without a login.
There is an important account-recovery limitation: if an online user loses their password, neither the password nor account data can be recovered. The documentation recommends downloading backups.
Help
The documentation says users can open help at the relevant section by clicking the help icon or pressing F1.
Pricing
Asterics AAC is free and open-source. Its Free plan costs 0.00 USD per free. There is no free trial, and the app will always remain free and open-source. Cross-device synchronization depends on funding for server costs.
Platforms
Asterics AAC runs in web browsers on Android, iOS, Windows, macOS, and Linux. Its browser-based design supports reopening the app offline after the initial visit has cached it. Registered users can synchronize grids across devices when online.
Who it's for
Asterics AAC is for people seeking customizable augmentative and alternative communication grids, including users who need different ways to select grid elements or use speech output. Its options also suit people who want communication tools alongside supported smart-home controls and media playback. The choice of computer voices varies by platform and browser, and online account users should keep backups because lost passwords cannot be recovered.
Pros and cons
Pros
- Customizable grids support labels, images, sentence building, and word prediction.
- Offers a broad range of access methods, including switches, scanning, microphone input, and Framework events such as eye or head movement.
- Can be used offline after the initial browser visit caches the app.
- Online personalized data is end-to-end encrypted with the user's password.
- Includes integrations for supported devices and services, plus radio, YouTube controls, and podcasts.
- Free and open-source.
Cons
- Voice availability depends on the platform and browser.
- Lost passwords and account data cannot be recovered for online users.
- Online user data is deleted after 365 days without a login.
- Cross-device synchronization depends on funding for server costs.
Alternatives
Other AAC communication apps to consider include Cboard, Jellow, Speech Assistant AAC, TD Snap, SymboTalk, Spoken, Niki Talk, and Weave Chat AAC.
Verdict
Asterics AAC combines flexible grid-based communication with several selection methods, speech, offline use, and optional synchronization for registered users. Its smart-home integrations and media tools add functions beyond communication. It is free and open-source, but online users should download backups because account recovery is not possible if a password is lost. Those choosing the app should also consider that synchronization depends on server-cost funding and that available voices vary by browser and platform.
Asterics AAC plans and pricing
All plansCompared on AAC communication software
- Free plan
- Yesgrid.asterics.eu
- Symbol system
- hybridgrid.asterics.eu
- Speech output
- Yesgrid.asterics.eu
- Access methods
- Touch, mouse, keyboard, external switch, scanning, hovering, microphone input, and AsTeRICS Framework events such as eye or head movementgrid.asterics.eu
- Offline use
- Yesgrid.asterics.eu
- Supported platforms
- Web browsers on Android, iOS, Windows, macOS and Linuxgrid.asterics.eu
- Layout customization
- fully_customizablegrid.asterics.eu
Facts
- Purpose
- Asterics AAC is a web-based application for augmentative and alternative communication that lets users create customizable grids.asterics.eu · 28 Sept 2026
- Grid features
- Grid elements can show labels or images, speak phrases, collect selected words into sentences, and offer word predictions.asterics.eu · 28 Sept 2026
- Input options
- Users can select grid elements using mouse or touch, scanning, direction input, Huffman input, or sequential input.asterics.eu · 28 Sept 2026
- Speech
- The app supports computer voices and can speak element labels or custom text; available voices depend on the platform and browser.asterics.eu · 28 Sept 2026
- Smart home integrations
- Grid actions can control running AsTeRICS Framework models, openHAB devices, and programs or devices that expose an HTTP REST API.asterics.eu · 28 Sept 2026
- Media features
- Users can search for and play web radio, control YouTube videos inside the app, and play podcasts.asterics.eu · 28 Sept 2026
- Synchronization
- Registered users can synchronize grids across devices, while offline users keep personalized data locally in the browser.grid.asterics.eu · 28 Sept 2026
- Privacy
- For online users, personalized data is end-to-end encrypted with the user’s password, and the foundation says it cannot access that data unencrypted.grid.asterics.eu · 28 Sept 2026
- Data retention
- Online user data is deleted after 365 days without a login.grid.asterics.eu · 28 Sept 2026
- Support
- The user documentation says users can open help at the relevant section by clicking the help icon or pressing F1.grid.asterics.eu · 28 Sept 2026
- Notable limitation
- If an online user loses their password, the password and the account data cannot be recovered; the documentation recommends downloading backups.asterics.eu · 28 Sept 2026
- Maker
- The AsTeRICS Foundation says it was founded in February 2017 to bring project results to people with disabilities, organize workshops, and coordinate projects.asterics.eu · 28 Sept 2026
Company
- Headquarters
- Vienna, Austriagrid.asterics.eu · 23 Sept 2026
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Sources
- asterics.eu/manuals/asterics-grid/01_terms.html· checked 28 Sept 2026
- asterics.eu/manuals/asterics-grid/09_input-options.· checked 28 Sept 2026
- asterics.eu/manuals/asterics-grid/faq.html· checked 28 Sept 2026
- asterics.eu/manuals/asterics-grid/08_actions.html· checked 28 Sept 2026
- grid.asterics.eu/app/privacy_en.html· checked 28 Sept 2026
- grid.asterics.eu· checked 28 Sept 2026
- asterics.eu/next/get-involved/About-us.html· checked 28 Sept 2026


