Comparison

Electrical Formulas Quiz vs Engineering Formulas

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

Head to head
About

Electrical Formulas Quiz

Features
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Electrical Formula Genius is the ultimate quick-reference and quiz tool for students, technicians, and engineers. Stop flipping through textbooksβ€”test your knowledge of core concepts like impedance, phase relationships, RMS values, and more right on your phone! Sure! Here’s the formatting you asked for, with each string on its own line like your examples: Some of the formulas covered include but not limited to: -Electric Charge -Electric Current -Voltage / Potential Difference -Resistance -Conductance -Power (DC) -Energy -Electric Field -Force on Charge -Work Done -Capacitance -Inductance -Magnetic Flux -Magnetic Flux Density -Magnetic Field Intensity -Permeability -Permittivity -Electric Displacement -Current Density -Resistivity -Conductivity -Potential Energy -Drift Velocity -Power Dissipation -Joule’s Heat -EMF -Internal Resistance -Coulomb’s Law Force -Ohmic Power Loss -Energy Density (Electric) -Energy Density (Magnetic) -Surface Charge Density -Line Charge Density -Volume Charge Density -Time Constant (RC) -Time Constant (RL) -Reactance (Inductive) -Reactance (Capacitive) -Impedance -Admittance -Susceptance -Reactance Angle -Apparent Power -Reactive Power -True Power -Power Factor -Phase Angle -RMS Voltage -RMS Current -Average Power (AC) -AC Circuits & Phasors -Angular Frequency -Frequency -Period -Instantaneous Voltage -Instantaneous Current -Phase Difference -Phasor Voltage -Phasor Current -RMS Relation -Instantaneous Power -Average Power -Apparent Power -Reactive Power -Complex Power -Power Triangle -Impedance (Complex) -Admittance (Complex) -Reactance (General) -Phase Angle of Impedance -Voltage Divider (AC) -Current Divider (AC) -Resonant Frequency (LC) -Q-Factor (Resonance) -Bandwidth (Resonance) -Quality Factor (Series RLC) -Quality Factor (Parallel RLC) -Damping Factor -Resonant Angular Frequency -Voltage Magnification (RLC) -Current Magnification (RLC) -RMS Value (Sine) -Average Value (Half Cycle) -Form Factor -Peak Factor -Total Impedance (Series) -Total Admittance (Parallel) -Phase Voltage (Star) -Line Voltage (Star) -Phase Current (Delta) -Line Current (Delta) -3-Phase Power -3-Phase Apparent Power -Reactive Power (3-Phase) -Power Factor Correction Capacitance -Power Factor Correction Angle -Power in Balanced Load -Efficiency -Crest Factor -Total Harmonic Distortion -Phase Sequence -Symmetrical Components -Power Triangle Angle -Impedance Angle -Complex Power Conjugate -Real Component of Power -Imaginary Component of Power -Instantaneous Reactive Power -Active Current -Reactive Current -Power Factor Angle -RMS of Composite Wave -AC Power Loss -Average Power (Non-Sinusoidal) -Skin Depth -Power Density -Reactive Energy -Apparent Energy -Complex Power per Phase -Average Energy per Cycle -RMS Frequency Variation -RMS Impedance Variation -RMS Voltage Deviation -Instantaneous Phase Voltage -Line-to-Line Voltage -Complex Admittance -Negative Sequence Current -Positive Sequence Current -Zero Sequence Current -Symmetrical Impedance -Voltage Regulation -Power Transfer Efficiency -Frequency Response -Phase Response -Bode Magnitude -Bode Phase -Resonance Gain -Voltage Standing Wave Ratio -Reflection Coefficient -Transmission Coefficient -Power Reflection Coefficient -Standing Wave Ratio -Attenuation Constant -Phase Constant -Propagation Constant -Characteristic Impedance -Power Gain -Decibel Power Gain -Voltage Gain -Voltage Gain (dB) -Power Loss Factor Perfect For -Electrical Engineering students (high school & college) -Electricians -Teachers & tutors -Anyone curious about the world of Electrical Engineering! Start your journey into the world of Electrical Engineering β€” one formula at a time. Download Electrical Formula Quiz today and see how many formulas you really know! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/ElectricalFormulas/privacy-policy

About

Engineering Formulas

Features
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EngiRef is the all-in-one engineering reference app that works 100% offline. Access formulas, material properties, reference tables, and a powerful unit converter - all without internet connection. FORMULA LIBRARY Browse 140+ essential engineering formulas organized by discipline: β€’ Mechanical Engineering: stress, strain, torque, power, gear ratios, spring design β€’ Electrical Engineering: Ohm's law, AC/DC circuits, impedance, resonance β€’ Civil/Structural: beam deflection, Euler buckling, Manning's equation β€’ Thermodynamics: ideal gas law, Carnot efficiency, heat transfer β€’ Fluid Mechanics: Bernoulli, Reynolds number, Darcy-Weisbach β€’ Materials Science: Young's modulus, Poisson's ratio, fatigue analysis BUILT-IN CALCULATOR Enter your values and get instant results. Every calculation shows step-by-step solutions so you understand the process, not just the answer. Perfect for learning and exam preparation. MATERIALS DATABASE Access properties for 55+ engineering materials: β€’ Carbon steels (AISI 1018, 1045, 4140, 4340) β€’ Stainless steels (304, 316, 17-4 PH) β€’ Aluminum alloys (6061-T6, 7075-T6, 2024-T3) β€’ Titanium, copper, nickel alloys β€’ Plastics (ABS, HDPE, Nylon, PEEK, Delrin) β€’ Composites, concrete, and wood Compare up to 3 materials side-by-side with density, tensile strength, elastic modulus, thermal conductivity, and more. REFERENCE TABLES β€’ Bolt specifications: Metric M3-M36, SAE/Imperial sizes β€’ Pipe schedules: NPS dimensions and wall thickness β€’ Wire gauges: AWG 0000-40 with ampacity ratings UNIT CONVERTER Convert between 16 categories including length, pressure, temperature, force, energy, flow rate, and viscosity. Accessible from any screen via slide-over panel. PHYSICAL CONSTANTS Quick reference for 34 constants including speed of light, gravitational constant, Boltzmann constant, Avogadro's number, and more. QUIZ MODE Test your knowledge with flashcard-style quizzes. Track progress across all disciplines. Prepare for FE and PE exams. ADDITIONAL FEATURES β€’ Dark and light themes (follows system setting) β€’ Favorites to bookmark frequently used formulas β€’ Calculation history with timestamps β€’ Create and save custom formulas β€’ Export and share your data β€’ LaTeX formula rendering β€’ iPad-optimized layouts PRIVACY FOCUSED EngiRef collects zero personal data. No analytics, no ads. All your calculations and favorites stay on your device. We believe engineering tools should respect your privacy. Whether you are a student preparing for exams, a working engineer needing quick field reference, or a technician looking for material specs, EngiRef puts essential engineering knowledge in your pocket. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Electrical Formulas Quiz4 screens
Engineering Formulas4 screens

Verdict

The call

The clearest difference is device support: Engineering Formulas at 3 against Electrical Formulas Quiz's 1. Engineering Formulas also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Electrical Formulas Quiz sells 3 in-app purchases, starting at $7.99 per 7 days and Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Electrical Formulas Quiz ships an update every 3 months, Engineering Formulas every 2 months. The most recent releases landed on September 15, 2026 and August 18, 2026 respectively.

Scorecard2 real differences Β· 4 level
Electrical Formulas Quiz versus Engineering Formulas: the parameters behind the verdict, then further details
ParameterElectrical Formulas QuizEngineering Formulas
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 months β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod β€” better
Requires iOS17.015.1 β€” better
Further details β€” not scored
Size10 MB45 MB
Age rating4+12+
DeveloperForwa Elade WundeMobin Akhter

In-app purchases

3 purchases

Electrical Formulas Quiz

Subscriptions3
  • Week$7.997 Days
  • Month$19.991 Month
  • Year$29.991 Year
3 purchases

Engineering Formulas

Subscriptions2
  • Weekly Premium$4.997 Days
  • Yearly Premium$29.991 Year
One-time1
  • Lifetime Access$54.99

Questions

Is Electrical Formulas Quiz free?
Electrical Formulas Quiz is free to download, with in-app purchases available.
Is Engineering Formulas free?
Engineering Formulas is free to download, with in-app purchases available.
Do Electrical Formulas Quiz or Engineering Formulas have ads?
Neither Electrical Formulas Quiz nor Engineering Formulas shows ads.
Which is updated more often, Electrical Formulas Quiz or Engineering Formulas?
Electrical Formulas Quiz ships an update every 3 months, and Engineering Formulas every 2 months. Most recently, Electrical Formulas Quiz was updated on September 15, 2026 and Engineering Formulas on August 18, 2026.

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