Comparison

qubeCTG by SKILLQUBE vs ECG Vector

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

qubeCTG by SKILLQUBE

Features
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The new SKILLQUBE Fetal Monitor Simulator is a real-time cardiotocograph monitoring system. It is used in simulated obstetric settings during labor and birthing to display fetal heart rates and maternal contractions. It has a library of preprogrammed scenarios that will take students from basics to advanced scenarios with complex birthing issues.

About

ECG Vector

Features
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ECG Vector is an educational simulator for exploring how electrical activity in the heart relates to ECG waveforms. Switch between six learning workspaces on Mac, iPhone, and iPad. ECG Mechanism Observe 3D activation and repolarization, the cardiac source vector, and lead-axis projections in sync with the ECG. Use single-lead decomposition, two-lead comparison, and the 12-lead view to understand differences in polarity and shape. Ion & ECG Explore educational approximations linking Na⁺, K⁺, Ca²⁺, H⁺ (pH), and major ion currents to action potentials, ECG measures, and clinical conditions. See differences from the reference alongside explanations. Ventricular Action Potential Numerically simulate a single ventricular cell using Luo–Rudy I (1991). View membrane voltage, Na⁺/Ca²⁺/K⁺ currents, conductances, and gates together. Pause at the peak sodium current and compare with the membrane diagram. Cardiac Rhythm View representative regional action potentials on a shared timeline. Adjust the sinus cycle, conduction speed, and AV delay, and explore schematic examples of normal rhythm, bradycardia, tachycardia, and AV block. ECG & Conditions Compare normal and representative clinical patterns in single-lead or 12-lead views, with explanations of waveform features and their mechanisms. Learn & Quiz Identify patterns from the 12 leads and rhythm strip, then deepen your understanding with explanations. Free access includes Adult Normal and Right Bundle Branch Block, all standard 12 leads, fixed electrode placement, four guided Ion & ECG examples, and comparison and quiz samples. The standard ventricular-cell model, stimulus adjustment, playback, current and gate inspection, and all Cardiac Rhythm features are also free. The one-time ECG Vector Pro purchase unlocks unrestricted Ion & ECG adjustment and its synchronized 12-lead response; ventricular-cell conductance adjustment, suppression presets, and comparison with the standard trace; additional pediatric and clinical patterns; custom leads; electrode editing; and the complete comparison and quiz libraries. This is not a subscription. For education only—not diagnosis, treatment decisions, or patient-specific prediction. Ion & ECG uses educational response approximations; the ventricular-cell model is based on guinea-pig ventricular muscle; Cardiac Rhythm uses waveform templates and activation timings. A single-cell membrane potential is not a surface ECG or a QT interval. No sign-in or external hardware is required.

Screenshots

ECG Vector4 screens

Verdict

The call

The clearest difference is in-app purchases: qubeCTG by SKILLQUBE at none against ECG Vector's 1. ECG Vector's advantage is update cadence (every 9 days vs every 3 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ECG Vector sells 1 one-off in-app purchase. qubeCTG by SKILLQUBE asks for nothing beyond the download.

UpkeepUpdate frequency

qubeCTG by SKILLQUBE ships an update every 3 months, ECG Vector every 9 days. The most recent releases landed on September 21, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 3 level
qubeCTG by SKILLQUBE versus ECG Vector: the parameters behind the verdict, then further details
ParameterqubeCTG by SKILLQUBEECG Vector
PriceFreeFree
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPadiPhone, iPad, Mac — better
Requires iOS16.0 — better17.0
Further details — not scored
Size125 MB12 MB
Age rating4+4+
DeveloperSKILLQUBE GmbHTakashi Nakano

In-app purchases

None

qubeCTG by SKILLQUBE

No in-app purchases

1 purchases

ECG Vector

One-time1
  • ECG Vector Pro$6.99

Questions

Is qubeCTG by SKILLQUBE free?
qubeCTG by SKILLQUBE is free to download, with no in-app purchases.
Is ECG Vector free?
ECG Vector is free to download, with in-app purchases available.
Do qubeCTG by SKILLQUBE or ECG Vector have ads?
Neither qubeCTG by SKILLQUBE nor ECG Vector shows ads.
Which is updated more often, qubeCTG by SKILLQUBE or ECG Vector?
qubeCTG by SKILLQUBE ships an update every 3 months, and ECG Vector every 9 days. Most recently, qubeCTG by SKILLQUBE was updated on September 21, 2026 and ECG Vector on October 14, 2026.

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