Android
For 64-bit ARM Android devices. Direct installs use the signed APK; Play builds remain distributed through Google Play.
Motto Author
Motto Reader
Motto Native is two focused apps with one shared protocol. Publish encrypted chapters in Author, then unlock and read locally in Reader without a mottosoup account.
Choose your app
Two apps, one protocol
Install Author to create and publish. Install Reader to discover, unlock, and read. Every package is authenticated by the current signed release manifest.
For 64-bit ARM Android devices. Direct installs use the signed APK; Play builds remain distributed through Google Play.
Motto Author
Motto Reader
The installer includes the offline WebView2 runtime, so setup does not need to fetch it separately.
Use the portable AppImage on most distributions, or install the Debian package on Debian and Ubuntu systems.
Motto Author
Motto Reader
Before you install
Download the checksum file, signature, and public key beside your packages. One signed release manifest authenticates every current Author and Reader build.
# Authenticate the release key against the pinned SPKI fingerprint
test "$(openssl pkey -pubin \
-in motto-release-public.pem -outform DER \
| sha256sum | cut -d' ' -f1)" = "79dc94598d18b3d803336c6534aa9226aab48316b2a32467c57c5d0858935105" # Verify the signed manifest
openssl pkeyutl -verify -pubin \
-inkey motto-release-public.pem \
-rawin -in SHA256SUMS \
-sigfile SHA256SUMS.sig # Check file hashes
sha256sum --check --ignore-missing SHA256SUMS