I haven't looked at the mobile app in a few days, but have done a lot (by my standards) on the desktop site. When I looked at the feed on app, it said +260 reputation on SO. This is clearly not the change that I got since my last SO activity - about 3 minutes prior on the desktop site.
I'm guessing it's the change since the last time I looked at the app feed. At least for me, it makes more sense for it to show the reputation change since last activity on any platform.
Is this a bug, or was there a compelling reason to have it display the change since last activity on this app only?