It seems like a nice and cloud based application that can be used for recording ideas or to make some more serious recordings to work on with other musicians as one of the main ideas is to easily communicate with other musicians. Unlimited storage for tracks sounds pretty good and it comes with a mixer.
Here is a article of it by Performermag:
Google Play info:
BandLab is the cloud platform where musicians and fans create music, collaborate and engage with each other across the globe.You can capture all your musical ideas seamlessly and develop them with others anytime, anywhere. Your creative workflow has never been more efficient and productive.
With BandLab, creativity has no limits!
• Capture, store and recall your song ideas wherever you are, wherever you go.
• No more misplaced post-its or lost voice memos. You’ll never lose an idea again.
• Synchronised to all your devices through the cloud.
DEVELOP YOUR IDEAS
• Develop your ideas into songs - alone or with musicians from anywhere in the world.
• Collaborate on multi-track projects without worrying about the tools with our built-in Mix Editor.
• Follow your creative process wherever it takes you with our visual version control system.
SHARE AND ENGAGE
• Invite other music creators and lovers on your creative journey.
• Share unreleased versions and work in progress for feedback.
• Pull back the curtain and forge a deeper more meaningful connection with your fans.
• Embedded links in Chat! The most convenient way to share Songs and other musicians profiles with your friends and bandmates. Also, it is a great way to start conversation with others ;)
• Small but very important UX update. Song Tree View now shows if a new version of your song is synchronized with the cloud.