A mobile health coaching platform where care meets compassion.

About Lark

Lark Health is a digital health company aimed at delivering 24/7 scalable, accessible chronic condition prevention and management coaching. Through the use of conversational AI, connected devices, remote patient monitoring, and Cognitive Behavioral Therapy techniques, Lark is poised to help millions improve their health to manage and reduce their risk of chronic disease. Lark’s platform seamlessly integrates with health plans’ and employers’ existing healthcare infrastructure to support their chronic care prevention and management programs.

Lark Website

The Ecosystem outcome

Castlight’s Ecosystem simplifies the member experience and maximizes engagement by connecting health and wellbeing programs all in one place and leveraging deep personalization to promote the right programs to the right people at the right time. By working with our partners to create a cohesive member experience, together we drive better value for our shared clients.  

Reach the right people



Increase in utilization

Sustain engagement



Monthly return rate

Bend the healthcare cost curve



Lower medical spend trend year-over-year

Deliver an outstanding experience


Net Promoter Score

Deep integrations

Real-time two-way data exchange with SSO and API

Lark is connected to the Castlight platform via a deep, data exchange integration. As members engage with Lark, they earn points in Castlight for completing specific micro-actions, like chatting with a guide or engaging with educational content, which also helps power Castlight’s personalized recommendations.

Set goals and a timeline that are unique to your personal health journey.

Track your activity, sleep, and more—and begin seeing a healthier future.

Check in with your coach daily for highly personalized insights and advice.

Explore the Castlight Ecosystem

Proudly partnering with best-in-breed digital health solutions that are helping members stay healthy, manage conditions, and access care.