When you hit that creative flow, often the only limit is the size of your notebook. Flow has an elegant solution: its canvas stretches to infinity.

What we love: This beautiful virtual notebook has an artful selection of realistic pencils and markers, each with over 1,400 colors to choose from. On iPad, set up custom gestures for Apple Pencil and your finger, and collaborate with others in real time.

Quick tip: The paper options in the app—dot, grid, lined, and isometric—were modeled after the legendary notebooks. You can swap one style for another, even after you’ve started sketching, by tapping the icon with the three dots and selecting Background.

Meet the creator: Flow is a collaboration between Moleskine and app developer Bonobo. “We design new feature ideas for Flow inside of Flow by collaborating on documents,” says cofounder and designer Ben Hamey. “It’s very meta.”