Kisi is a startup that turns your smartphone into a keycard and lets you send keys over email with more security and flexibility than, say, leaving a spare key under the flower pot. Kisi began in Munich, Germany is now based in Brooklyn, NY.
Kisi uses a MakerBot Replicator 2 Desktop 3D Printer to prototype its hardware rapidly along with its software. Kisi also produces the housing for its devices on a MakerBot Replicator 2 Desktop 3D Printer. 3D printing allows Kisi to continue improving their devices based on real-world feedback from customers.