Healthcare professionals can register for smartphone apps to use the BNF and BNFC for free with their NHS Athens username and passwords. Full details are available at http://www.nice.org.uk/aboutnice/nicewebsitedevelopment/NICEApps.jsp
Some users who have already downloaded the apps have recently been experiencing issues due to changes and upgrades in the software. If you are experiencing any issues using the apps, the current advice is to try removing the app and then reinstalling.