Free on the App Store and Google Play, today.
iPad, iPhone, Android tablets, phones and Chromebooks. About 35 MB. No account required.
Lighthouse AAC,
the launch reel.
Music: "Wholesome" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Three ways in, so nobody is locked out.
Google Play and the Apple App Store.
The default path for families in markets where these stores work. Free, signed, automatic updates.
Direct APK, F-Droid, and GitHub Releases.
Not available yet. For regions where the stores are blocked, we will publish a signed Android APK with a SHA-256 checksum, and list the open-source build on F-Droid. Until then, the stores and device-to-device sharing are the two ways in.
Device-to-device sharing.
Two things can move between devices with no internet, through the device's built-in share sheet. A family can send their child's vocabulary and board setup to another family, who imports it directly and offline. Sharing the app itself works device-to-device on Android as a signed APK; on iOS, installing the app goes through the App Store. This is the path that matters in refugee camps, in rural areas with intermittent connectivity, and in regions with strict network controls.
How to verify a download.
Direct downloads are not published yet. When they are, every release will ship with a SHA-256 checksum and a signing-key fingerprint printed here, so you can compute the hash of the file you downloaded and confirm it matches the one we shipped.
Open source from day one.
The full source code for Lighthouse AAC is released under the MIT license. You can read it, build it yourself, fork it, or contribute. The default vocabulary board uses the Fitzgerald Key color system and ARASAAC symbols.
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