The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Raintek Solutions India Private Limited:
The qsuk Health & Safety Quick Assessment Application serves only to act as a form of assessment of the health and safety status of the organisation and to the premises to which it refers. It provides a rapid feedback and allows you to review the steps you need to undertake. It provides you with the necessary baseline information to seek a full and comprehensive inspection or further information from qsuk Limited. The data contained within this app is not intended, either expressly or implied, to act as an exhaustive checklist of your health and safety duties and obligations, nor an exhaustive checklist of the legislation to which it refers.