Element OTG vs Interactive Physics Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Element OTG
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• Complete Periodic Table - All 118 elements with detailed information • Interactive Learning Center - Chemistry quizzes and symbol practice • Smart Search & Filter - Find elements by name, symbol, or properties • Dark Mode Support - Choose light, dark, or follow system theme • Responsive Design - Perfect for phones, tablets, and desktops
Interactive Physics Simulator
Explore over 100 real-time physics simulations across 38 modules, covering classical, modern, quantum, and medical physics. Visualize complex phenomena with adjustable parameters, formulas, and immediate visual feedback. Ideal for students and educators seeking an interactive learning laboratory.
- 100+ interactive simulations
- 38 physics modules
- Real-time parameter control
- Adjustable sliders with visual feedback
- Formulas and numerical results displayed
- Quiz mode for testing understanding
- Support for 12 languages
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Physics Simulator transforms your iPad and iPhone into an interactive physics laboratory with 38 modules and over 100 real-time simulations. WHAT'S NEW IN VERSION 3.3 • New Animations: Radiation Therapy, Laser Physics, Biophysics (Ion Flow) • Enhanced visualizations: Relativity Time Dilation, Ultrasound Charts • Added support for 2 new languages: Russian and Portuguese (Total 12) • Performance optimization: ~15% faster rendering • 100+ interactive simulations in 38 physics modules COMPREHENSIVE PHYSICS COVERAGE Classical Physics: Explore mechanics with projectile motion, pendulums, and spring oscillators. Study thermodynamics, wave phenomena, and oscillations with interactive visualizations. Electromagnetism & Optics: Visualize electric fields, capacitors, and circuits. Experiment with lenses, telescopes, and diffraction patterns. Modern Physics: Discover the Bohr atomic model, quantum tunneling, and radioactive decay. View 3D hydrogen orbital animations and explore electron orbital shapes (s, p, d). Quantum Mechanics: Visualize electron orbitals in 3D with color-coded wave function phases. Choose between s, p, and d orbitals with all subtypes (px, py, pz, dz², dxz, dyz, dx²-y², dxy). Medical Physics: Professional-grade simulations for MRI (Bloch equations, T1/T2 relaxation, k-space), CT (Radon transform, filtered backprojection), ultrasound with Doppler imaging, Radiation Therapy (Dose Distribution), and nuclear medicine (SPECT, PET). Emerging Fields: Biophysics, Plasma Physics, Geophysics, Particle Physics, Laser Physics, Nanotechnology, Superconductivity, Cosmology, and Gravitational Waves. Advanced Topics: Relativity, chaos theory with Lorenz attractors, celestial mechanics with eclipse simulations, fluid dynamics, acoustics, and astrophysics including gravitational lensing. KEY FEATURES • 100+ interactive simulations with real-time parameter control • Adjustable sliders with immediate visual feedback • Formulas and numerical results displayed alongside animations • Quiz mode to test your understanding • Universal app optimized for iPhone and iPad • Support for 12 languages (English, German, French, Spanish, Italian, Chinese, Japanese, Korean, Hindi, Indonesian, Portuguese, Russian) PERFECT FOR • University physics courses • Medical physics education • High school physics classes • Self-study and exam preparation • Teaching demonstrations All simulations are designed for educational purposes and provide clear, scientifically accurate visualizations of physical phenomena.
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Verdict
The clearest difference is price: Element OTG at Free against Interactive Physics Simulator's $4.99. Element OTG also leads on iOS requirement (13.0 vs 17.6). Interactive Physics Simulator's advantage is ads (none vs shown) and update cadence (weekly vs monthly). On 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
Element OTG is free to download; Interactive Physics Simulator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Element OTG ships an update monthly, Interactive Physics Simulator weekly. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.
| Parameter | Element OTG | Interactive Physics Simulator |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 25 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Japality Limited | Dietmar Henrich |
In-app purchases
Element OTG
No in-app purchases
Interactive Physics Simulator
No in-app purchases
Questions
Is Element OTG free?
Is Interactive Physics Simulator free?
Do Element OTG or Interactive Physics Simulator have ads?
Which is updated more often, Element OTG or Interactive Physics Simulator?
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