Welcome
Welcome to the Spren Developer Portal. Embed meaningful biomarker insights into your app, including heart rate variability, heart rate, respiration rate, body fat, acute mental stress score, physiological-based activity guidance, cardiorespiratory fitness score, and more.
Power-up your app with Spren's SDKs or bring your own device and use a simple API call. The Spren SDKs combine years of targeted R&D and billions of data points to extract deep, meaningful insights from an accessible phone camera.
Your brand and design stay front and center while, behind the scenes, Spren translates complex physiological data into deep, personalized insights that enrich your user experience and increase both engagement and behavior change.
What's new?
09/14/22 - Apple Watch support added to test environment
Added Apple Watch as a device from which inter-beat intervals (IBIs) may be accepted in test environment. See API Docs
07/15/22 - Added rmssd and breathingRate to Spren API production environment: rmssd value and breathingRate can now be returned alongside HRV score and heart rate values, (results after POSTing to the /submit/sdkData endpoint) in Spren API production environment. See API Docs
07/15/22 - Released update for React Native (2.0.0) which adds support for Spren Vision Android SDK (Alpha):
We expanded React Native support to Android so it is now available for both Spren Vision iOS SDK and Android SDK (Alpha)! Try it now
Please also see these breaking changes included in this release.
07/14/22 - Released update for Flutter plugin (2.0.1):
Updated plugin to include these breaking changes and added new LICENSE file.
06/29/22 - RMSSD and Breathing Rate added to Spren API test environment: RMSSD value and breathing rate can now be returned alongside HRV score and heart rate values. Currently only available in the test environment. See API Docs 06/16/22 - Flutter plugin for Spren Vision Android SDK (Alpha) available: We expanded Flutter support to Android so it is now available for Spren Vision iOS SDK and Android SDK (Alpha)! Try it now
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