Mac Users: There are many free BPM Analyzer apps available for Mac users on the Apple's App Store. For example, Launchpad does not cost anything and is very useful. The free version allows you to listen to a song and view the album on the iPhone as well. Launchpad also allows you to launch directly to any other BPM app on your Mac. If you need more functionality, some of the paid BPM apps are very useful also.
It is recommended to launch your app with "BPM Analyze" as your app name when launching it on a Mac. This will launch the app, but leave your computer alone while doing so. After a short time, you should be able to open the app, and view your files. These are just some things to help you learn about BPM analyzers for your Mac laptop or PC.