Phyzix vs OhmQuest

Phyzix turns your phone into a complete, pocket-sized physics laboratory. Built on the sensors already inside your device, it gives students, teachers, makers and curious minds 100+ real instruments, interactive simulations, calculators and guided experiments - all running entirely on-device. No account. No ads. No internet required. Nothing you measure ever leaves your phone. MEASURE THE REAL WORLD Read live data straight from your device's sensors: - Sound & DSP: spectrum analyzer, oscilloscope, spectrogram, chromatic tuner, sound-level / decibel meter, noise dosimeter, pitch detector, VU meter - Motion & Inertia: accelerometer, G-force meter, gyroscope, bubble level, inclinometer, seismometer, vibration meter, step counter, free-fall & jump-height timer - Fields & Magnetism: magnetometer, compass, metal detector, EMF detector, magnetic dip & field-vector readouts - Environment: barometer, altimeter, variometer, weather-pressure trend - Light & Optics: lux light meter, exposure value (EV), foot-candle and daylight readouts - Navigation: GPS speedometer and heading SIMULATE THE PHYSICS Interactive, parameter-driven simulations you can tweak in real time: projectile motion, pendulums, waves and more - see how the equations actually behave. CALCULATE & CONVERT A full set of physics calculators plus a powerful unit converter for length, mass, force, energy, pressure, speed and beyond. LEARN & EXPERIMENT A built-in Learn hub explains the concept behind every instrument, and guided experiments (like the reaction-time test) turn your phone into a hands-on STEM activity. DESIGNED TO BE USED ANYWHERE - 9 languages: English, Spanish, French, German, Japanese, Chinese, Arabic, Vietnamese and more - Clean, modern interface with light & dark themes - A tool audit log so you can review your sessions and readings - 100% offline and private by design Whether you're teaching a class, checking a measurement, exploring how the world works, or just having fun with the science hiding inside your phone, Phyzix puts an entire lab in your pocket. Note: Available instruments depend on the sensors your specific device includes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

OhmQuest turns abstract middle-school electricity into interactive buildable, runnable, observable simulation labs for students, parent-child study and electronics fans. 100 progressive challenge levels let you build circuits and observe phenomena to master current, voltage, resistance, heat and electromagnetism. 200 exam exercises require real circuit operation before answering, stopping rote memorization. Free sandbox mode with power supplies, meters, motors and electromagnetic parts. Adjust parameters and view formulas instantly to recreate textbook circuits anytime. No account, no ads, no data tracking; all progress saves locally. For educational use only, not professional electrical engineering. Subject to Apple’s Standard EULA. Apple Standard EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/