Brightspace Pulse is a mobile app that "that helps students keep track of important updates. It brings news, deadlines, and grades together in one place so they can spend less time organizing and more time learning."
You can get Pulse at Google Play or the App Store. Go to https://www.d2l.com/products/pulse/ to get the app from the appropriate link for your device.
Once you get Pulse, you will be able to select your school to set it up for use. If you're on campus, Bloomsburg/BOLT should show up at the top of the list! You should be able to login using your HuskyID just like you login to BOLT, and will have access to your calendar, announcements, discussion subscriptions, and more.
If you want detailed instructions on using Pulse, you can find them at https://documentation.brightspace.com/EN/pulse/-/learner/using_pulse.htm