# Kayva Health > Kayva is a wellness app (not a medical device) that turns Apple Watch and Health Connect data into calm, citation-backed insights through Kessa, its AI guide. Join the beta waitlist at https://www.kayvahealth.com/ Kayva reads your wearable rhythm, patterns, and peer-reviewed science, then explains what matters in plain language. Kessa cites sources, won't invent readiness scores on missing data, and keeps health data private with row-level security on Supabase. ## What Kessa does - Unified wellness calendar from your wearable data - Voice check-ins and symptom logging - Photo meal estimates (images not stored on Kayva servers) - Citation-backed answers with paper references - 90-day GP brief export - Optional family wellness sharing (consent required) - Kessa AI with opt-in for scrubbed wellness aggregates only ## Key pages - [Home / waitlist](https://www.kayvahealth.com/): Product overview and early access signup - [Privacy Policy](https://www.kayvahealth.com/privacy): Data collection, Kessa AI, Anthropic sub-processor, GDPR - [Terms of Service](https://www.kayvahealth.com/terms): App usage rules ## Contact and links - Website: https://www.kayvahealth.com/ - Waitlist: https://www.kayvahealth.com/?source=llms - Platforms: iOS and Android (beta) ## Optional Full legal text is on /privacy and /terms. This file is a plain-text summary for AI assistants and crawlers that do not run JavaScript.