Cardiographer

Pulse & HRV at your fingertip

Only for iPhone

Free · In‑App Purchases

iPhone

• Live pulse waveform at 240 Hz with beat-by-beat detail • One averaged beat with the dicrotic notch labeled • Heart rate (BPM) with signal-quality feedback Cardiographer turns your iPhone's rear camera into a fingertip pulse reader. Cover the camera with a fingertip and watch your full pulse waveform at 240 samples per second — heart rate, the pulse shape with its dicrotic notch, and heart-rate variability for stress & recovery awareness. Everything is processed on your device; nothing is uploaded. SEE EVERY BEAT • Live pulse waveform at 240 Hz with beat-by-beat detail • One averaged beat with the dicrotic notch labeled • Heart rate (BPM) with signal-quality feedback STRESS & RECOVERY, YOUR WAY • HRV (SDNN) after every reading • Trends over time in History • Export readings as CSV PRIVATE BY DESIGN • 100% on-device processing — no account, no cloud, no tracking A FINGERTIP AND SOME LIGHT • Cleanest signal in daylight — just face the incoming light • Dark room? Turn on the flash with one tap, or use any lamp • Clear guidance for a good signal CARDIOGRAPHER PRO Unlimited readings, full history and CSV export with a monthly subscription — 7-day free trial for new subscribers. Payment is charged to your Apple ID account; the subscription auto-renews unless cancelled at least 24 hours before the current period ends. Manage or cancel anytime in Settings. Cardiographer is for general wellness and fitness only. It is not a medical device and is not intended to diagnose, treat, or monitor any medical condition. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://software.nanorescenter.com/cardiographer-privacy

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Cardiographer is now free to use! Free for everyone: • Unlimited heart-rate readings — just your fingertip and daylight, no account, no ads • Your 3 most recent readings saved in History Premium — try it free for 7 days: • Full pulse waveform at 240 samples/second, with the dicrotic notch • Heart-rate variability (HRV) for stress & recovery awareness • Full history & trends over time • CSV/PDF export Plus small fixes and performance improvements. Cardiographer is for general wellness and fitness only. It is not a medical device.

Version 1.1

Subscriptions

The developer, NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI
    Size
    10.3 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Nanoelectronics Research Center
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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