# Cardiographer — Pulse & HRV at your fingertip

> Pulse & HRV at your fingertip (iPhone/iPad app by NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI.)

- Source: https://appshunter.io/ios/app/cardiographer/id6782079327 (this page in markdown: same URL + `.md`)
- Developer: [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases (on sale, was $7.99)
- Age rating: 4+
- Requires: iOS 17.6 · 10 MB
- Languages: American English
- Released: 2026-07-21
- Data updated: 2026-08-02
- User reviews in markdown: https://appshunter.io/ios/app/cardiographer/id6782079327/reviews.md

## What is Cardiographer?

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Subscription | $1.99 | per month |



## Version history (last 2 releases)

### 1.1 — 2026-08-01

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.

### 1.0 — 2026-07-21

No release notes.

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All apps by NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI: https://appshunter.io/developer/1674573382

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-02.*