We release new versions of the Montr reporting app regularly - sometimes several times a week - which allows us to roll out changes very quickly.
To see which version you are currently running, the app displays a build number. This is useful to know when a new update has just been released, for example to fix a bug, and you want to confirm whether you're already on the latest version.
Tap the settings button (the three lines).
The build number is shown in the bottom left:
