Keepr runs in a browser and as an Android app, and the two show the same library — whatever you add on one appears on the other.
In a browser#
Any modern browser, on a laptop, a desktop, an Android phone or an iPhone. There's nothing to install and no reduced version: browsing, uploading, sharing and settings all work the same way they do in the app.
A computer is usually the easiest place to add a large number of photos at once, and it's also the answer for anyone you've invited who doesn't want to install anything.
As an Android app#
Keepr is on Google Play. The app adds the things only a native app can do — most usefully, uploads that keep running in the background while you use your phone for something else.
Added to your home screen#
On both Android and iPhone, you can add Keepr to your home screen from the browser. It then opens in its own window with an icon like any other app, without the browser's address bar.
For someone who just wants to look at the family's photos, this is often enough.
Signing in#
With your Google account, or with an email address and password. Either way it's the same account and the same library, on every device.
What works without a connection#
Photos and videos you've looked at recently are kept on your device, so they still open if your signal drops on a train or a plane.
This is a cache, not an offline copy of your library — anything you haven't opened lately will still want a connection, and older items are cleared automatically to make room. There isn't currently a way to mark an album to keep offline.
If you want a copy that doesn't depend on Keepr at all, that's what downloading and exporting are for.