Feeling your health, not your age.

Juvenescence is a biotech and life sciences company leading the movement to reimagine human longevity and vitality. After developing a proprietary formula for accurately calculating biological age, they set out on a mission to create JuvYou, an app dedicated to educating and guiding users on how to live healthier and longer.

Spark created a native app experience that translated Juvenescence’s sophisticated algorithm into an actionable interface, uniquely visualizing users’ biological age, simulating lifestyle changes, and setting goals with a customized plan of personalized recommendations, trackable progress, a daily dashboard, and achievements.

The Formula

Leveraged sprint model to refine requirements, rapidly design, deliver and launch features as ready

Performed sprint-by-sprint UAT to ensure optimal design to development translation

Conducted multiple rounds of user testing including unmoderated user testing and a longitudinal diary study


Since its launch, JuvYou has a 4.6-star rating on the App Store.

“Spark brought JuvYou to life by making sure the user experience was front and center during every step of the app development. They were exceptional at translating deep science into a meaningful and engaging user journey.”

Josh Anthony
Chief Science Officer
  • Project Management
  • Stakeholder Interviews
  • Customer Journey Mapping
  • Usability Testing
  • Innovation Workshops
  • Art Direction
  • Visual Design
  • Native Applications
  • API and 3rd Party Integrations
  • Quality Assurance

More Work