The best note taker for collaboration: Dropbox Paper
Dropbox is better known for cloud storage services, but its Paper tool is a simple, speedy app for making notes on any device and syncing them everywhere—as with the main Dropbox client apps, the syncing and sharing options are all really well done here, and the app handles everything from collaboration to comments with a real elegance.

Dropbox Paper scores highly for simplicity, but that doesn’t mean it’s basic: It can handle video, images, and sound as well as text, and it works offline too. Where the app excels is in the way its collaboration features and tools are combined into one intuitive whole—it’s a breeze to use throughout, with a clutter-free interface that’s very easy on the eye.