Electric Field Explorer vs QLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electric Field Explorer
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E-Field Explorer makes electric fields visible and intuitive. Place positive and negative charges directly on the field, move them freely, and watch field lines, equipotential lines, and field strength update in real time. Use preset scenes such as a single charge, dipole, quadrupole, capacitor, or hollow sphere for a quick start, then adapt each setup to your own experiment. You can adjust charge strength for selected charges and optionally show labels for clearer orientation. The integrated particle emitter makes field behavior especially easy to grasp. Choose positive or negative test charges, automatic emission or single pulses, and damped or undamped motion. That makes the app ideal for teaching, self-study, and visual demonstrations on iPhone and iPad. Features: - Place positive and negative charges with drag and drop - Toggle field lines, equipotential lines, and heatmap - Adjust the strength of individual charges - Start from preset scenes for common electrostatic setups - Share screenshots directly from the app
QLab
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Die App ist eine digitale Erweiterung des „QuantumSchoolLab“ an der Universität Duisburg-Essen. Mithilfe von Augmented Reality wird das Verständnis für die komplexen Versuche erleichtert. So kann man z.B Photonen während eines Quantumschlüsselaustauschs verfolgen und erhält so ein besseres Verständnis für die inhärente kryptographische Sicherheit des Schlüsselaustauschs. Mithilfe der AR-App gelingt es das normalerweise Unsichtbare sichtbar zu machen. Bisherige Inhalte: Aufbau und Funktionsweise des Quantumschlüsselaustauschs und des Quantenradierers. Die Inhalte der App werden nach und nach erweitert. Voraussetzung für die Nutzung der App ist ein Besuch im Schülerlabor oder die auf der Website zur Verfügung gestellten Materialien.
Screenshots
Verdict
The clearest difference is price: QLab at Free against Electric Field Explorer's $1.99. QLab also leads on iOS requirement (13.0 vs 26.0). On ads, in-app purchases and device support 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
QLab is free to download; Electric Field Explorer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Electric Field Explorer | QLab |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Holger Wiesing | Universität Duisburg-Essen |
In-app purchases
Electric Field Explorer
No in-app purchases
QLab
No in-app purchases
Questions
Is Electric Field Explorer free?
Is QLab free?
Do Electric Field Explorer or QLab have ads?
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