Comparison

Signals and Systems vs Phyzix

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

Head to head
About

Signals and Systems

Features
Read full description

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/SignalsSystems/privacy-policy Boost your understanding of Signals and Systems with our interactive engineering quiz app! Designed for students, engineers, and enthusiasts, this app covers key concepts and applications in Signals and Systems to help you ace exams, prepare for interviews, and enhance your technical skills. Features: Comprehensive Topics: Dive into Fourier analysis, Laplace transforms, Z-transforms, convolution, modulation, and more. Perfectly tailored for beginners and advanced learners alike. Interactive Quizzes: Test your knowledge with multiple-choice questions, numerical problems, and real-world application scenarios. Detailed Explanations: Learn as you go with in-depth explanations for every question. Progress Tracking: Monitor your performance, identify weak areas, and work on them effectively. Modern Tools: Includes coverage of time-frequency analysis, digital filter design, and emerging trends in signal processing. Whether you're studying for exams, preparing for competitive tests, or brushing up on core concepts, this app is your ultimate learning partner for mastering Signals and Systems. Download now and take your engineering skills to new heights!

About

Phyzix

Features
Read full description

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/

Screenshots

Signals and Systems4 screens
Phyzix4 screens

Verdict

The call

The clearest difference is update cadence: Phyzix at every 2 days against Signals and Systems's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Signals and Systems sells 6 in-app purchases, starting at $9.99 per month and Phyzix sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Signals and Systems ships an update every 5 weeks, Phyzix every 2 days. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

Scorecard1 real difference ยท 5 level
Signals and Systems versus Phyzix: the parameters behind the verdict, then further details
ParameterSignals and SystemsPhyzix
PriceFreeFree
Update frequencyEvery 5 weeksEvery 2 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.0 โ€” better18.0
Further details โ€” not scored
Size18 MB8 MB
Age rating4+4+
DeveloperForwa Elade WundeNguyen Ngoc Tan

In-app purchases

6 purchases

Signals and Systems

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99
3 purchases

Phyzix

Subscriptions2
  • Spark$1.991 Month
  • Orbit$14.991 Year
One-time1
  • Lifetime$39.99

Questions

Is Signals and Systems free?
Signals and Systems is free to download, with in-app purchases available.
Is Phyzix free?
Phyzix is free to download, with in-app purchases available.
Do Signals and Systems or Phyzix have ads?
Neither Signals and Systems nor Phyzix shows ads.
Which is updated more often, Signals and Systems or Phyzix?
Signals and Systems ships an update every 5 weeks, and Phyzix every 2 days. Most recently, Signals and Systems was updated on October 7, 2026 and Phyzix on October 17, 2026.

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