Comparison

Electrical Formulas Quiz vs TinyOhms

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

TinyOhms

Features
Read full description

TinyOhms opens straight onto a breadboard. Drop in a battery, a resistor and an LED, and the circuit runs the moment the loop closes. Current flows along the wires as moving chevrons, the LED glows brighter or dimmer with the real numbers, and if you push too much current through it, it pops. Nothing to install, nothing to solder, nothing to break. REAL PARTS, REAL MATH Every component behaves like the one in the drawer: resistors follow Ohm's law, LEDs have a forward voltage, transistors amplify, capacitors charge and drain, and the 555 timer ticks at the frequency its resistors and capacitor set. Under the hood is a full circuit solver (the same kind of nodal analysis SPICE uses), so the readouts are the ones you would measure with a meter. SEE WHAT IS HAPPENING β€’ Live current flow on every wire, with direction and strength β€’ Inspect mode: tap the eye to read every node voltage and branch current β€’ A built-in scope that traces voltages over time β€” watch a capacitor charge, or a 555 output square wave β€’ Real sound: buzzers beep and piezo speakers play the pitch the circuit sets β€’ Room-light and temperature sliders to drive light sensors and thermistors β€’ Short-circuit and overload warnings before anything "burns" BUILT FOR LEARNING TinyOhms is made for teens and any complete beginner. There is no lesson to sit through: build, watch, change one thing, and see what happens. Twenty ready circuits take you from a single LED to a light-following night light, a blinking timer, a one-shot pulse, a pitch control you can hear, and a traffic-light sequencer built from a 555 and a 4017 counter. YOUR OWN LIBRARY Sign in with just your email (a code, no password) to save circuits to your library and open them on the TinyOhms website Workbench too. Export any board as a SPICE netlist or share the board file. ON THE BENCH Free: wire, jumper, batteries (3 V, 4.5 V, 9 V), resistor, LED, switch, push button, buzzer, light sensor (LDR) and NPN transistor β€” everything the beginner projects need. TinyOhms Pro (optional monthly subscription): potentiometer, capacitor, 1N4001 diode, DC motor, thermistor, piezo speaker, the 555 timer and the CD4017 counter. Circuits from the library always open in full, whether or not you subscribe. TinyOhms Pro renews monthly until cancelled in Settings β€Ί Apple Account β€Ί Subscriptions. Under 18? Ask a parent first. Terms: https://tinyohms.com/terms/ Privacy: https://tinyohms.com/privacy/ No ads, no tracking, no analytics. Just electrons.

Screenshots

Electrical Formulas Quiz4 screens
TinyOhms4 screens

Verdict

The call

The clearest difference is update cadence: TinyOhms at every 4 days against Electrical Formulas Quiz's every 3 months. On price, ads, in-app purchases and device support 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 TinyOhms sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Electrical Formulas Quiz ships an update every 3 months, TinyOhms every 4 days. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

Scorecard1 real difference Β· 5 level
Electrical Formulas Quiz versus TinyOhms: the parameters behind the verdict, then further details
ParameterElectrical Formulas QuizTinyOhms
PriceFreeFree
Update frequencyEvery 3 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS17.017.0
Further details β€” not scored
Size10 MB2 MB
Age rating4+4+
DeveloperForwa Elade WundeAdhish Technologies

In-app purchases

3 purchases

Electrical Formulas Quiz

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

TinyOhms

Subscriptions1
  • com.tinyohms.app.pro.monthly$2.991 Month

Questions

Is Electrical Formulas Quiz free?
Electrical Formulas Quiz is free to download, with in-app purchases available.
Is TinyOhms free?
TinyOhms is free to download, with in-app purchases available.
Do Electrical Formulas Quiz or TinyOhms have ads?
Neither Electrical Formulas Quiz nor TinyOhms shows ads.
Which is updated more often, Electrical Formulas Quiz or TinyOhms?
Electrical Formulas Quiz ships an update every 3 months, and TinyOhms every 4 days. Most recently, Electrical Formulas Quiz was updated on October 2, 2026 and TinyOhms on September 27, 2026.

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