Mark One

Mark One aims to build desirable products that engage, inform, and inspire people to make healthier choices in real time. Mark One's main goal is to implement new and impactful technologies into products that seamlessly integrate with one's life. We are based in San Francisco, CA, but you can also visit us anytime at www.myvessyl.com.

Mark One's first product, Vessyl, is the cup that knows what’s inside and automatically tracks what you drink. Vessyl lets you choose the specific “lenses” (sugar, protein, carbs, etc.) that you want to track. Naturally, the lenses update in real-time on your Vessyl and iOS or Android app. We also plan to connect with popular activity trackers for more accurate net calories and hydration awareness. Check out our press section to see what others are saying.