WHOOP is a wearable health tracker with an accompanying app and membership. The device has no screen or buttons and measures, among other things, heart rate, heart rate variability, respiration and sleep; the app derives daily values for strain, recovery and sleep from these. Users view their data in the WHOOP app for iOS and Android. Without an active membership the device stops tracking. The service combines hardware, a mobile app and a cloud platform.
WHOOP, Inc. is headquartered in Boston, Massachusetts, in the United States, and is subject to US jurisdiction, including the CLOUD Act. Under the GDPR, health and biometric data are special categories of personal data. In its privacy principles WHOOP says it evaluates its practices against, among others, the GDPR and California's CCPA, and that it does not sell member data. WHOOP does not say where data is stored; European users should expect processing in the US and can ask WHOOP which safeguards apply to transfers.