Foldable phones have come a long way in just a few years. People really need new ways to make use of the large screen, but for now, a foldable phone does not feel like a real productivity tool. But durability without usefulness leaves a gap, and people do not buy phones just to admire hinges or count fewer creases. To win over the mainstream, foldables need more than stronger hardware. They need software that makes the form factor matter in daily life.