Android app and PWA

spellcache is built for phones first. There are two ways to have it on your home screen; both open your own server and always run its current version.

	Installed web app (PWA)	Android app (APK)
Android	Yes	Yes, Android 7.0 or later
iPhone, iPad	Yes	No
Install from	Your browser	GitHub releases
Updates	With the server	With the server; the APK itself rarely changes

Neither works offline: spellcache always needs a connection to your server.

Installed web app

Open your spellcache address in the browser, then use the browser’s own install entry:

• Chrome on Android: menu › Add to Home screen (or Install app).
• Safari on iPhone: share button › Add to Home Screen.
• Chrome or Edge on desktop: the install icon in the address bar.

The app opens in its own window, without the browser’s toolbar.

Android app

1. Download spellcache-<version>.apk from the latest release. A .sha256 file next to it lets you check the download.
2. Open it on the phone. Android asks you to allow installs from the browser or file manager you used: allow it for this install.
3. On first launch, enter Your spellcache server, the address you open spellcache at in your browser (e.g. https://spellcache.example.com), and tap Connect.

The server must be reachable over HTTPS with a certificate Android trusts. Plain HTTP and self-signed certificates are refused. If the app cannot reach the server, check the address and that the server answers in a browser.

The Android app also carries the card scanner, which reads cards with the camera.

Later launches open your server directly. To change server, press the system Back button from the first page of your server: it returns to the server screen. Links to other sites open in your browser.

Signing in on a phone

The sign-in email holds both a link and a 6-digit code. In the installed web app and in the Android app, type the code: the link opens in the browser, not in the app. See Collection for the sign-in steps.