Hive Keychain mobile Apps have been updated and now include Hive Auth capabilities.
If you don't have the mobile Apps yet, you can download them here :
Basically, you can now sign transactions coming from anywhere (your desktop browser, mobile browser or mobile Apps) through your Hive Keychain mobile App, thanks to 
You can get some information on Hive Auth by clicking on Icon 1 above.
On the same device, mobile Apps and browsers can communicate with Keychain via deep linking.
To sign transactions for your desktop device, initiate the communication by scanning a QR Code (icon 3) above.
Icon 2 shows you if your App is connected to Hive Auth at any given time.
Once you initiated a connection by clicking on a deep link or scanning a QR Code, you'll be prompted to authenticate, and choose for how long your session will be valid.
That's it, you can now perform transactions and whitelist them!
When there is an active connection to Hive Auth, the indicator will turn green.
If the connection is dropped, it will automatically try to reconnect, if it fails, the indicator will turn red and you can press it to attempt to connect once again.
Pressing the indicator for a long time drops every current session and disconnect from Hive Auth.
It's working great on Android and you'll be able to sign posting key transactions without returning to Keychain (if the operation is whitelisted). If Keychain doesn't sign your transactions while in the background, try excluding it from your battery saving settings.
Unfortunately, iOS doesn't allow background actions except for a very limited number of cases, so you'll have to have Keychain opened to sign transactions.
