P: Aperture information is different between desktop and mobile versions

Aperture information is different between desktop Lightroom CC 2015 (Windows 7) and the Android mobile app (Samsung S6). I've noticed this on a few photos and a few lenses. For example, when I look at some photos that I shot at f2.8 with a Canon 70-200 f2.8 IS II, on the desktop version of Lightroom the information is correct, but on the Android version the information says f3.0. Similarly, when shooting at f5.6 with a Canon 10-22mm, the desktop version shows f5.6, but the Android version shows f5.0.