FiftyThree was a company known for developing innovative digital tools for creativity and productivity. Founded in 2011, it gained significant recognition for its Paper app, which allowed users to create sketches, diagrams, notes, and illustrations on iOS devices with an intuitive interface. The company also produced a hardware stylus called Pencil, designed to complement the app's functionality. In 2018, FiftyThree was acquired by WeTransfer, aiming to integrate its creative solutions into a broader suite of tools. As a result, FiftyThree's website now redirects to WeTransfer’s site, focusing on the continued mission of facilitating creative collaboration and expression.