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NAVER D2SF, NAVER’s Corporate Venture Capital (CVC), has made a new investment in GravityLabs, a healthcare startup dedicated to helping people build healthy habits.

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Since 2017, NAVER D2SF has steadily invested across the entire healthcare value chain, from PHR and EMR to medical imaging AI and genomic analysis. As of 2025, healthcare startups make up about 18% of its portfolio. Notably, HDJunction’s EMR solution has been adopted at NAVER’s in-house clinic, and Atommerce’s mental health solution serves as the official counseling partner for NAVER employees. Genome analysis startup Ichrogene has co-developed products with NAVER Cloud. GravityLabs also shares many points of synergy with NAVER, as its mission is to help people live healthier lives in their daily routines. What did NAVER D2SF find most compelling about GravityLabs?

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Investment Point 1. A Team Built on Self-Sufficiency

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GravityLabs is one of the few healthcare startups working with PHR (Personal Health Record) data that has managed to deliver meaningful results. While many startups struggle either to collect sufficient data or to put it to effective use, GravityLabs chose a different path—focusing first on establishing a foundation of self-reliance. The company has developed a healthcare platform that helps users sustain healthy habits through rewards and gamification. By recording their health activities, users earn rewards, and in the process, GravityLabs is able to accumulate valuable PHR data.

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To ensure long-term sustainability, GravityLabs designed a structure in which reward costs are fully supported by its own revenue streams. By independently developing proprietary logic that maximizes advertising revenue, the company has been able to offer industry-leading rewards while still maintaining operating profitability.

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The platform’s user metrics are equally impressive. In just two years since launch, DAU has increased sixfold year over year. Overseas users—particularly in Japan and the United States—now represent 40% of total MAU. Even without dedicated promotions, the app ranked 8th in Japan’s healthcare app chart, achieved a retention rate of around 20% (compared to the healthcare platform average of 4% according to Sendbird), and recorded average session durations of more than 30 minutes, demonstrating strong and sustained user engagement.

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Investment Point 2. Expansion of Health Data Scope

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With a solid foundation in place, GravityLabs is now focused on both increasing the volume of data it collects and diversifying the types of data it manages. What began with step count data has since expanded to include body composition, exercise, diet, sleep, and emotional health—all seamlessly integrated and managed within the platform.

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Users can input health data manually or leverage the AI Health Camera, which enables them to measure biometrics such as blood pressure, heart rate, and HRV directly through their smartphones. More recently, GravityLabs integrated its system with Korea’s National Health Insurance Service (NHIS) database, building a unified dataset that covers an individual’s entire lifelog. Because standard health checkups are typically conducted only once every one to two years, significant data gaps often remain. GravityLabs fills these gaps with directly collected health data, creating a continuous and comprehensive health record.

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The company’s next challenge is to validate its business revenue models based on this accumulated data, with a focus on research institutes, CROs, and pharmaceutical companies. Armed with its differentiated dataset, GravityLabs plans to actively pursue and compete in this market.

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Investment Point 3. A Vision to Extend Healthy Life Expectancy by 10 Years

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GravityLabs’ ultimate mission is to extend humanity’s healthy life expectancy by 10 years. While this may sound ambitious, the company is focused on improving everyday habits to make this vision a reality. Its philosophy is that small, consistent changes made through GravityLabs can accumulate into a healthier, longer life.

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Where did this vision originate? Jacob Kim, CEO and Founder of GravityLabs was inspired by Carl Sagan’s Cosmos, which prompted deep reflections on human existence and mortality. From this grew his vision of extending life expectancy through a healthcare startup. Kim took a leave of absence from medical school and went on to found three startups: one recommending personalized workouts, another creating a mobile game to encourage exercise habits, and finally GravityLabs. GravityLabs encountered Kim at each stage of his entrepreneurial journey and gained confidence as it witnessed him further solidifying and unfolding his vision.

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NAVER D2SF looks forward to GravityLabs bringing healthier lives to more people and is committed to joining its journey of turning mission and belief into reality.