You are downloading the Heartometer XAP file v1.0.0.1 for Windows Phone. Heartometer is a free Sports App: This application doesn't work with the developer preview OS version! Heartometer is an applcation that needs a Bluetooth SMART Heart Beat Monitor to work. You can now download the offline XAP package file to install & try it.
Download Locations for Heartometer 1.0.0.1 XAP file
Package File
Please Click Here > to retrieve available package files for Heartometer.
Please be aware that the Heartometer XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Heartometer or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Heartometer XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.