If you're one of the people who went out and got themselves a Microsoft Band 2 early on, then you may have found yourself dealing with a brief shortage of third party applications for the new hardware. As the world becomes more acquainted with the improved hardware of the Microsoft Band 2, the old third party apps from the original Microsoft Band have been updated to work with the new device.
— Nawzil (@Nawzil10) November 12, 2015
These apps are all pretty useful for anyone who's using the Microsoft Band 2, offering some simple, yet important, add-ons. Band Sensor Monitor (version 18.104.22.168 for Band 2) is an app that lets you check the status of all of your sensors - even the ones that are not already directly exposed. It also lets you save and share some of your readings to other users, if you're so inclined.
Find my Band (version 22.214.171.124 for Band 2) does exactly what you expect - it helps you find your band, if you've lost it. Activate it on your phone, and your Band will start vibrating and flashing to help you locate it.
Finally, Clear my Band (version 126.96.36.199 for Band 2) is a simple app that places a button on your home screen that allows you to wipe all of your notifications and messages with one tap.
Thanks to David for the tip!