Electrical Engineering Toolkit vs resistor code calculator+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrical Engineering Toolkit
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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/
resistor code calculator+
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Resistor Color Code Calculator A handy reference app for calculating resistor values using the standard color-coding system. Perfect for makers, engineers, students, and hobbyists working with Arduino, Raspberry Pi, or any electronic projects. Key Features: • Comprehensive support for 3, 4, 5, and 6-band resistors • Easy-to-use interface • Industry-standard color codes • Instant value calculation Whether you're breadboarding a prototype, repairing electronics, or learning about circuits, this app helps you quickly identify resistor values without memorizing the color code system. Simply select the colors on your resistor and get the resistance value instantly. Essential for: • Electronics enthusiasts • Engineering students • Makers and DIY enthusiasts • Arduino/Raspberry Pi projects • Electronics repair and maintenance • Circuit design and prototyping Never struggle with resistor color codes again - keep this practical reference tool in your pocket!
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Verdict
The clearest difference is in-app purchases: resistor code calculator+ at none against Electrical Engineering Toolkit's 3. resistor code calculator+ also leads on update cadence (every 3 weeks vs every 9 months) and iOS requirement (12.0 vs 16.2). On price, ads 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
Both are free to download. Electrical Engineering Toolkit sells 3 in-app purchases, starting at $0.99 per month. resistor code calculator+ asks for nothing beyond the download.
Electrical Engineering Toolkit ships an update every 9 months, resistor code calculator+ every 3 weeks. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.
| Parameter | Electrical Engineering Toolkit | resistor code calculator+ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladislav Zhirnov | 佳 黄 |
In-app purchases
Electrical Engineering Toolkit
- Full version / monthly$0.991 Month
- Full version / year$3.991 Year
- Support project, remove ADS$5.99
resistor code calculator+
No in-app purchases
Questions
Is Electrical Engineering Toolkit free?
Is resistor code calculator+ free?
Do Electrical Engineering Toolkit or resistor code calculator+ have ads?
Which is updated more often, Electrical Engineering Toolkit or resistor code calculator+?
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