Comparison

Electrical Engineering Toolkit vs Circuit Simulator Q

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

Head to head
About

Electrical Engineering Toolkit

Features
Read full description

Design faster, check formulas instantly, and get confident answers—whether you’re wiring a prototype, laying out a PCB, or verifying lab results. This all-in-one toolkit brings together the most-used electronics calculators so you don’t have to jump between apps or spreadsheets. Core Circuits & Passives • Ohm’s Law (V, I, R, P) • Resistor color code (through-hole & SMD) • Series/parallel & voltage divider • Capacitance & capacitor impedance (RC) • Inductance/reactance/admittance; coil/loop inductance • Battery life estimation • RMS/peak/peak-to-peak voltage • Decibel (dB) converters for power/voltage levels Analog & RF Essentials • Op-amp gain/voltage and inverting resistor calculators • Impedance matching: π-match and T-match • RF power: ratio/units conversion, PAE, N-way power divider • dB/dBm helpers for quick link-budget math These are the same families of tools engineers rely on for day-to-day analog and RF work. PCB & Signal Integrity (EDA) • Microstrip/stripline impedance (single-ended & differential) • Trace width and max current • Crosstalk (edge/broadside), wire/microstrip inductance These capabilities mirror what dedicated PCB toolkits and online impedance calculators provide—now in one place on your phone. Electromechanical & Power • Lenz’s & Faraday’s laws (induced EMF) • Torque conversion and stepper motor helpers • Flyback SMPS building blocks • Heat sink basics & power density • Peak/peak-to-peak/RMS and power conversions These bridge the gap between bench calculations and real hardware choices. Physics & Foundations • Lorentz force, electrical energy, RC time constant, LC tank resonance—handy checks for labs and exams alike. Why this app? • Comprehensive: from Ohm’s Law and resistor codes to PCB impedance and RF power—covering the everyday set engineers actually use. • Built for speed: clean inputs, clear results, and units you expect. • For everyone: students learning the basics, makers iterating quickly, and professionals verifying designs. Perfect for: electronics labs, field service, ham/RF projects, PCB layout checks, audio/dB work, and rapid “sanity-check” calculations during reviews. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Circuit Simulator Q

Design and simulate complex digital logic circuits with an intuitive interface. Explore basic gates, build counters, ALUs, and even create your own processors. This tool brings your digital electronics ideas to life.

Highlights
  • Advanced circuit design
  • Qnet netlist algorithm
  • Build counter circuits and flip-flops
  • Construct Arithmetic Logic Units (ALUs)
  • Design custom processors
Features
Read full description

Welcome to Circuit Simulator Q! Unleash your creativity and dive into the world of digital circuit design! With Circuit Simulator Q, you can design and simulate logic circuits ranging from the simplest to the most complex designs. Our intuitive interface allows you to bring your ideas to life effortlessly. Key Features: Advanced Circuit Design: Create intricate logic circuits, from basic gates to complex architectures, all at your fingertips. Qnet Algorithm: Experience the power of our superior netlist algorithm, Qnet. Capable of handling the most complex circuits and branches, Qnet ensures seamless netlist generation while being resilient to loops. Build Countable Circuits: Design your own counter circuits and flip-flops, exploring the fundamentals of digital electronics. Arithmetic Logic Units: Construct arithmetic logic units (ALUs) that enable you to perform various calculations and operations. Create Your Own Processor: Push the boundaries of your imagination by designing your very own processors, integrating logic components like never before. Join a community of innovators and transform your ideas into reality with Circuit Simulator Q! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Electrical Engineering Toolkit4 screens
Circuit Simulator Q4 screens

Verdict

The call

The clearest difference is update cadence: Circuit Simulator Q at every 2 days against Electrical Engineering Toolkit's every 9 months. Circuit Simulator Q also leads on iOS requirement (13.0 vs 16.2). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Electrical Engineering Toolkit sells 3 in-app purchases, starting at $0.99 per month and Circuit Simulator Q sells 2 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 Engineering Toolkit ships an update every 9 months, Circuit Simulator Q every 2 days. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
Electrical Engineering Toolkit versus Circuit Simulator Q: the parameters behind the verdict, then further details
ParameterElectrical Engineering ToolkitCircuit Simulator Q
PriceFreeFree
Rating—2.7 (3 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 9 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.213.0 — better
Further details — not scored
Size12 MB190 MB
Age rating4+4+
DeveloperVladislav ZhirnovAli Mert TUFEKCI

In-app purchases

3 purchases

Electrical Engineering Toolkit

Subscriptions2
  • Full version / monthly$0.991 Month
  • Full version / year$3.991 Year
One-time1
  • Support project, remove ADS$5.99
2 purchases

Circuit Simulator Q

Subscriptions2
  • Weekly Plan$4.997 Days
  • Yearly Plan$29.991 Year

Questions

Is Electrical Engineering Toolkit free?
Electrical Engineering Toolkit is free to download, with in-app purchases available.
Is Circuit Simulator Q free?
Circuit Simulator Q is free to download, with in-app purchases available.
Do Electrical Engineering Toolkit or Circuit Simulator Q have ads?
Neither Electrical Engineering Toolkit nor Circuit Simulator Q shows ads.
Which is updated more often, Electrical Engineering Toolkit or Circuit Simulator Q?
Electrical Engineering Toolkit ships an update every 9 months, and Circuit Simulator Q every 2 days. Most recently, Electrical Engineering Toolkit was updated on September 10, 2026 and Circuit Simulator Q on September 19, 2026.

Other comparisons