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Heart Rate support
Need a hand with the app? Email us and a real person will get back to you — usually within 1–2 business days.
Email us
support@novaz.appInclude your device model and iOS version. Please don't send health readings unless we need them to help.
Send an emailFeeling unwell? Support can't give medical advice. If you have chest pain, shortness of breath, fainting or an irregular heartbeat, contact a doctor or emergency services.
Measuring
Readings failing or jumping around? Tell us your iPhone or iPad model and what the screen says.
Apple Health & data
Questions about saving readings to Apple Health, exporting a report, or deleting your data.
PRO
Trial, restoring a purchase, or what PRO includes — we'll sort it out.
Browse the guides
- How to measure your heart rate with your iPhone camera
- Heart rate reading failed? How to get a clean one
- How accurate is a camera heart rate reading?
- Measuring your heart rate on iPad
- When is the best time to measure your heart rate?
- What is PPG? How a camera reads your pulse
- What is heart rate variability (HRV)?
- RMSSD, SDNN and pNN50 explained
- What is a good HRV?
- How the Heart Score works
- What does the stress level mean?
- What does the energy level mean?
- What is heart age?
- How breathing rate is read from your pulse
- What is a normal resting heart rate?
- How to lower your resting heart rate
- Target heart rate zones for exercise
- What raises your heart rate at rest?
- When should a heart rate reading send you to a doctor?
- How to measure blood pressure at home and log it
- Logging blood sugar: fasting and after meals
- Logging blood oxygen (SpO₂) from a pulse oximeter
- Reading your trends — and adding mood and activity
- Using the health plans
- How to save your readings to Apple Health
- Add the heart rate widget to your Home Screen
- Export a PDF health report for your doctor
- Set reminders to measure and to take your medication
- Free vs. PRO — and how the free trial works
- How to cancel your PRO subscription
Heart Rate & Health - Novaz is a wellness app, not a medical device. Its readings and suggestions do not diagnose, treat or prevent any condition and are not a substitute for a clinical measurement or medical advice. If a reading worries you, or you feel unwell, speak to a doctor.