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Yes. The app uses photoplethysmography (PPG): the camera and flash detect subtle blood-flow changes in your fingertip to estimate pulse rate for wellness tracking.

• Best quality comes from still hands, full fingertip coverage, and steady contact pressure for the full reading window.
• Cold fingers, movement, bright external light, and partial lens coverage can reduce signal quality.
• Take two measurements in a row when you want a cleaner baseline and compare consistency, not a single isolated value.

Use cuff readings as your primary blood pressure source, and pulse checks as supportive context before or after BP logging.

• Log BP under similar conditions each day: similar timing, posture, rest period, and arm position.
• Run a short pulse check when stressed, after activity, or before a recheck to understand context around unusual BP numbers.
• Focus on weekly patterns and consistency trends rather than reacting to every single outlier.

Variation is normal. Physiology changes with stress, hydration, breathing, time of day, sleep, posture, and recent activity.

• Comparability improves when checks are taken at similar times and conditions day to day.
• A short breathing reset before re-measurement can reduce stress-driven noise in pulse and BP routines.
• Interpret trend direction over days and weeks instead of treating one reading as a final conclusion.

For most users, once or twice daily under consistent conditions provides enough signal to see useful patterns.

• Morning and evening checks are common because they are easier to repeat consistently.
• Avoid over-checking in response to anxiety spikes; consistency beats frequency for long-term trend quality.
• If your clinician gave a protocol, follow that clinical plan first and use app routines around it.

No. The app is built for wellness awareness, habit support, and trend tracking; it does not diagnose, treat, or replace clinical care.

• Use medically validated devices and professional guidance for diagnosis and treatment decisions.
• If you have concerning symptoms (for example chest pain, severe shortness of breath, or neurological symptoms), seek urgent medical help immediately.
• Bring your long-term trend history to appointments so clinical decisions use broader context.

No wearable is required. You can run camera pulse checks on iPhone and manually log blood-pressure values from your cuff.

• The product is intentionally designed for users who want a no-hardware daily routine.
• Camera-based checks provide quick context without pairing external devices.
• You can still combine your own external devices when you want additional personal tracking data.

The app follows privacy-first principles and is designed to keep your wellness tracking history under your control.

• Camera access is used during measurement sessions to estimate pulse from fingertip signal.
• Review your in-app privacy settings and policy documents for current details on storage, retention, and available controls.
• Only grant permissions you are comfortable with and revisit them periodically in iOS settings.

Look for direction and consistency over time. A weekly trend is more meaningful than a single check taken under unknown conditions.

• Use context notes such as stress, poor sleep, or unusual activity when reviewing spikes.
• Set realistic thresholds for follow-up checks instead of repeating measurements continuously.
• Discuss persistent upward trends with a qualified healthcare professional.

The app is available on the Apple App Store. Use any “Download on the App Store” button on this landing page.

• App availability, screenshots, and pricing/subscription details are shown directly on the App Store listing.
• If the listing does not open, verify region availability and iOS compatibility on your device.
• For support questions before install, contact enthuyhanh91254@gmail.com.