XFR is an iPhone app developed by NIELSEN-KELLERMAN CO. that offers a seamless way for Magnetospeed (MS) chronograph users to transfer velocity data to their iOS devices. With this app, users can efficiently manage multiple data series and easily send the data via email or back it up using iCloud.

One of the key features of XFR is the ability to clear the current data from the MS device directly from the app. This simplifies the data management process and ensures that users have a clean slate whenever they need it. Additionally, the app allows users to change and adjust the settings of the MS device, providing a comprehensive solution for velocity data management.

It is worth noting that XFR requires permission to access the iPhone's microphone. This is necessary for the app to communicate with the MS device and transfer the velocity data accurately. Rest assured, the app adheres to privacy protocols and does not store or transmit any personal information.

XFR is a free app available in the Lifestyle category under the Sports subcategory on the App Store. Its user-friendly interface and essential features make it a valuable tool for Magnetospeed chronograph users looking to streamline their velocity data transfer process.