The app is distributed as a signed APK on GitHub. Installing it takes about a minute.
- Download the APK on your phone: opensolr-photos.apk, the latest release.
- Allow the install. Android asks once whether your browser may install apps. Allow it for this install.
- Open Opensolr Photos and tap Sign in with Opensolr. The Opensolr login opens in your browser; approve the app and you are back in it.
- Read what your plan covers, allow access to your photos, and choose your folders.
- The first sync starts on its own. Search as soon as the first photos show up.
01 · Verifying the download
Every release is signed with the same Opensolr Photos key. To check an APK before installing it, on a computer with the Android build tools:
apksigner verify --print-certs opensolr-photos.apk
The SHA-256 digest of the signer certificate must be:
1a54dace0d5d7e80df76d7a287ab3fdbc4b9ce7cef9c172e329159373a194151
The same fingerprint is published by opensolr.com in /.well-known/assetlinks.json. That file is what lets Android hand the end of the sign-in to this app and to no other.
02 · Updating
Download the newer APK and install it over the old one. Because every release carries the same signature, Android keeps your sign-in, your folders, your schedule and the photo cache. Releases and their notes are listed on GitHub.
03 · Reinstalling, a new phone, uninstalling
- Reinstalling on the same phone: sign in again. The app finds the phone's existing index and only syncs the differences. See the phone's index.
- A new phone: it gets an index of its own in the same account, and a first sync.
- Uninstalling: removes the app and everything it kept on the phone. The index stays in your Opensolr account; delete it from the control panel if you no longer want it.