# ECGCanvas — Design ECG Strips for Teaching

> Design ECG Strips for Teaching (iPhone/iPad app by Keisuke Nakashima.)

- Source: https://appshunter.io/ios/app/ecgcanvas/id6755224424 (this page in markdown: same URL + `.md`)
- Developer: [Keisuke Nakashima](https://appshunter.io/developer/1691259083)
- Category: Medical, Education
- Price: Free
- Age rating: 17+
- Requires: iOS 18.6 · 3 MB
- Languages: American English, Japanese
- Released: 2025-11-15
- Data updated: 2026-09-01
- User reviews in markdown: https://appshunter.io/ios/app/ecgcanvas/id6755224424/reviews.md

## What is ECGCanvas?

ECGCanvas is a waveform design tool for medical educators — combining parametric ECG generation with freehand pen drawing on a single ECG paper canvas.

Made for
· Lecture slides (PowerPoint / Keynote )
· Web-based teaching materials and HTML pages
· Side-by-side arrhythmia and ST-change comparison figures
· Annotating waveforms that parametric generation can't capture alone

Parametric Waveform Engine
Start from 8 clinical presets and fine-tune every parameter with sliders. Normal sinus rhythm, STEMI, ST depression, de Winter, bradycardia, tachycardia, T-wave inversion — all ready in seconds.

【Clinical Presets】
Normal / Horizontal ST Depression / Downsloping ST Depression / de Winter / STEMI / Bradycardia / Tachycardia / T Inversion

【Adjustable Parameters】
Heart rate · Beat count · P wave (amplitude, duration, PR interval) · QRS (R amplitude, width) · ST morphology (flat / downsloping / upsloping / convex) · J point · T wave (amplitude, duration, inversion)

ECG Paper Canvas
A true ECG grid with 1mm and 5mm spacing. Place waveform blocks anywhere on the canvas — a single strip or a multi-waveform comparison layout.

Pen Annotation
Draw directly on the canvas to capture waveform morphologies that parameters alone can't produce. The pen auto-matches the ECG stroke width (2pt) for a consistent look.

Eraser
The eraser works on both pen strokes and waveform blocks. Erased waveforms are fixed visually but lose their editable parameters.

High-Quality PNG Export
Exports at 3× scale for crisp, print-ready images — no blurring on Retina screens. Saved directly to Photos, ready to drop into slides or web pages.

Fast and Focused
No clutter, no recording, no unnecessary features. Open the app, build your figure, export. That's it.

Save time on lecture prep with ECGCanvas.


## Version history (last 5 releases)

### 2.2026.3 — 2026-07-20

Minor fixes.

### 2.2026.2 — 2026-06-24

Minor fixes.

### 2.2026.1 — 2026-06-20

· 8 clinical presets (Normal, STEMI, ST Depression, de Winter, Bradycardia, Tachycardia, T Inversion, and more)
· Fine-tune waveforms with parameter sliders
· Free-placement layout on ECG paper canvas
· Pen annotation with auto-matched stroke width
· Eraser tool — works on both pen strokes and waveform blocks
· High-res PNG export at 3× scale for slides and web

### 1.2025.2 — 2025-11-18

Enhanced with comprehensive ECG templates.

### 1.0 — 2025-11-16

No release notes.

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## More apps by Keisuke Nakashima

- [Iris Classifier](https://appshunter.io/ios/app/iris-classifier/id6449963398)
- [LogMyBP](https://appshunter.io/ios/app/logmybp/id6450522059)
- [AlcTrack](https://appshunter.io/ios/app/alctrack/id6450761704)
- [ねむけスコア](https://appshunter.io/ios/app/id6451238913)
- [Improv ACT](https://appshunter.io/ios/app/improv-act/id6455836199)
- [Hypertension Notebook](https://appshunter.io/ios/app/hypertension-notebook/id6458980427)

All apps by Keisuke Nakashima: https://appshunter.io/developer/1691259083

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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 2026-09-01.*