New · from CardioLens AI

Build Any ECG
in Seconds

CardioLens AI reads a strip. ECG Builder builds one. Describe a rhythm in plain words and get a clinically correct tracing on real ECG paper, then export it at print scale for your slides, handouts and exam items.

Coming to theApp StoreGet it onGoogle Play

iPhone, iPad and Android · $29.99 one-time, $24.99 for the first 60 days after release

iPhone and iPad

Watch it get built

On iPhone

Opens on the prompt, then walks you through the build.

Pick the rhythm27 rhythms, each with a specimen

Add the findingsIschaemia, blocks, ectopy, pacing

Lay out the sheet12-lead, rhythm strip, paper

On iPad

The ECG is the artwork; every control floats above it.

Pick the rhythmThe tracing rebuilds as you choose

Add the findingsScrub a value, watch it apply

Lay out the sheetThen export at print scale

Pricing

Look freely. Pay once to take it with you.

Free

Describe any rhythm and watch it built, at full fidelity
Build a normal twelve-lead yourself: rhythm, rate, intervals
Sheets carry a www.cardiolens.ca watermark
What you describe is a preview: read-only, and it stays in the app

ECG Builder Pro

$24.99$29.99

for the first 60 days after release

Every rhythm and every finding, yours to edit and re-roll
Export at print scale
No watermark on the paper
One purchase covers iPhone and iPad
No subscription, no credits

Before you ask

Questions

Is this for clinical use?

No. Every tracing is synthetic and generated for teaching. ECG Builder is an educational tool and is not a diagnostic device.

Which devices does it run on?

iPhone, iPad and Android. The iPhone and Android builds walk you through a guided build; iPad gets the full studio, where the tracing fills the screen and every control floats above it.

Does it need an account or a connection?

Neither. ECG Builder runs entirely on your device. There is no sign-in, no backend, and nothing you build ever leaves your phone or tablet.

What does the free version do?

Describe any rhythm and ECG Builder builds it in full, so you see exactly what the engine can do before you pay. That sheet is a preview: it is stamped with a cardiolens.ca watermark, it cannot be edited or exported, and it stays in the app. Free also builds a normal twelve-lead by hand, with the rhythm, rate and interval tools. Pro opens every rhythm and every finding, makes what you build editable, removes the watermark and exports at print scale.

Is it a subscription?

No. ECG Builder Pro is a one-time purchase — no subscription, no credits, no seats. iPhone and iPad share a single purchase through the App Store; Android is a separate one-time purchase through Google Play, since the two stores don’t share entitlements.