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Synheart ("we," "our," "us") builds technologies that help people understand their emotional, cognitive, and physiological state using biosignals, behavioral patterns, and AI-powered interpretation. This Privacy Policy explains how we collect, use, store, and protect personal information across the Synheart ecosystem, including Synheart Wear, Synheart Core SDK, Syni, Syni Life, Synheart Dashboard, and all related services ("Services").
By using Synheart products, you agree to this Privacy Policy.
We collect three categories of data:
When you use Synheart Wear, participate in Syni Life sessions, or enable integrations with supported wearables (e.g., WHOOP, Garmin), we may collect:
Heart rate (HR)
Heart rate variability (HRV)
Respiratory rate
Sleep stages & duration
Movement & accelerometer data
Skin temp (if supported by device)
Stress markers
Focus-related metrics
Raw biosignals stay on-device unless you explicitly consent to cloud processing.
If you enable the Synheart Behavioral SDK, we may collect:
Keystroke cadence (timing, not content)
Scroll velocity and interaction patterns
App interaction bursts and idle gaps
Focus patterns and task switching frequency
Motion and device orientation
We never collect message content, keystroke content, or personal text. Only timing-based signals.
Name, email, phone (if provided)
Device information (OS, version, model)
IP address (for security)
Crash logs and analytics
Subscription or billing info (if applicable)
We use data to deliver and improve Synheart features:
Focus estimation
Emotion & stress modeling
Flow state detection
HRV-based cognitive readiness
Account creation & authentication
Cloud synchronization (if consented)
Developer integrations
Wearable device linking
Model training and enhancement
Anonymous benchmarking
Quality improvement
Product updates
Support requests
Security notifications
We do not sell personal data.
We do not use data for advertising.
Depending on the Service:
On-device: Core behavioral signals, some biosignal processing, HSI fusion.
Cloud (with consent): Synheart Cloud, Syni, model inference.
Regions: AWS (US/EU/Canada regions depending on your country).
Raw data never leaves the device unless you opt in.
Raw data includes:
High-resolution HRV windows
PPG/accelerometer streams
Behavioral sequences
Keyboard timing samples
If you grant permission:
Data is encrypted before leaving your device.
Only necessary segments are transmitted for the selected feature.
You can disable cloud upload at any time.
We may share data only in these cases:
For example:
Linking your wearable
Connecting third-party apps
Using Syni with cloud inference
To operate Synheart Cloud:
AWS (hosting)
Analytics & crash reporting tools
All are bound by contractual privacy requirements.
If required by law, with proper documentation.
We never share biosignal or behavioral data with advertisers, data brokers, or unrelated third parties.
We retain data only as long as necessary:
Account data: while account is active
Biosignals: configurable in app
Behavioral data: typically 30–90 days (for rolling window models)
Logs & telemetry: 30 days
Backups: encrypted, limited access
You can request complete deletion at any time (see Section 9).
Depending on your region (GDPR, CCPA, PIPEDA), you have the right to:
Access your data
Correct your data
Delete your data
Export your data (portable export)
Withdraw consent
Restrict processing
Object to profiling
Submit a complaint
We will respond within the legally required time frame.
We use strong security methods including:
End-to-end encryption for sensitive data
On-device processing wherever possible
Strict access controls
Secure key management
Encrypted backups
Regular penetration testing
Despite best efforts, no system is 100% secure.
You can control:
Whether raw data leaves your device
Whether behavioral signals are collected
Whether cloud inference is used
Whether wearable data syncs
Whether analytics are enabled
You may also delete your account at any time, which removes all personal data from our systems.
Synheart is not intended for children under 16.
We do not knowingly collect data from children.
We may update this Privacy Policy to reflect improvements, legal changes, or new features.
If changes are significant, we will notify users.
If you have any questions about this Privacy Policy or wish to exercise your rights, please contact us:
Email: legal@synheart.ai
