Camera-based HR & HRV SDK for ios and android - available for commercial licensing

NEUROFIT Vitals enables mobile platforms to add a 60-second heart-rate and heart-rate variability (HRV) check-in using a smartphone’s rear camera and flash. No additional wearable is required.

We are seeking commercial licensing partners with existing mobile products, particularly employee wellbeing platforms, insurer member-engagement programs, fitness and recovery platforms, and complementary digital health products.

WHAT IT ENABLES

Users place a fingertip over the phone’s rear camera and flash to take a reading. The SDK provides heart rate, HRV metrics including RMSSD and SDNN, respiratory rate, and derived autonomic indices. Processing runs on-device; commercial operation does not require video to leave the phone. A signal-quality engine identifies unreliable readings.

Potential applications include: • Adding a physiological check-in to an existing wellbeing or member-engagement journey. • Helping users follow personal HR/HRV trends alongside self-reported wellbeing. • Supporting before-and-after measurement around wellbeing or recovery activities. • Incorporating smartphone-based measurements into appropriately designed research.

These are potential integration use cases, rather than demonstrated customer outcomes.

DEVELOPMENT AND EVIDENCE

Vitals is deployed within the NEUROFIT app, with native Swift and Kotlin libraries available for integration.

An interim internal validation study covered 30 participants, 20 phone models and 303 recorded readings, of which 265 were accepted. Participants completed normal-breathing and paced-breathing readings. Among accepted readings, reported mean absolute error versus a Polar H10 reference was 0.47 bpm for heart rate and 4.03 ms for RMSSD; 92.5% of accepted RMSSD readings were within 10 ms of the reference.

These findings reflect the tested conditions and accepted readings. They do not establish diagnostic performance or universal device compatibility. The interim report is available for technical review.

PARTNERSHIP SOUGHT

We are exploring non-exclusive commercial SDK licensing, beginning with a focused discussion of the partner’s product, intended use and integration requirements. Evaluation scope, supported devices, licensing terms and support would be agreed separately.

If you own a relevant mobile product or evaluate technology partnerships, we would welcome a 20-minute fit discussion and demonstration with our technical co-founder. A non-confidential overview is available before the call.