Microsoft is planning to release a OneNote for Mac app later this month. Sources familiar with Microsoft’s plans tell The Verge that the Mac application is part of a broader effort to expand the features and functionality of OneNote. While Microsoft originally released OneNote more than 10 years ago, the company has largely limited its note-taking app to Windows. We understand that Microsoft will release the OneNote for Mac app for free, and the company is also planning to make the Windows desktop version available at no extra cost.