Comparison

Resistor Calc+ vs Electronics Circuit Calc Pro

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

Head to head
About

Resistor Calc+

This utility helps you determine the resistance value of resistors by interpreting their colored bands. It supports 3, 4, 5, and 6 band resistors, visually displaying your selections and the calculated resistance and tolerance.

Highlights
  • Calculates resistance for 3-6 band resistors
  • Visual band color selection
  • Displays resistance and tolerance
  • Aids electronics configuration
  • User-friendly interface
Features
Read full description

Resistor color code calculator helps determine the resistance value indicated by the colored band. You can use it for 3, 4, 5 and 6 band resistors. You can click the band in the color table to select a color for that band. The resistor visually shows your band color selection and displays the corresponding resistance value. It will help you configure your electronics. How to use the resistance color code calculator - Please select the number of band colors first. - Select the color of the band by clicking on the corresponding box in the color chart. - The corresponding resistance value and the tolerance of the resistance are displayed.

About

Electronics Circuit Calc Pro

This app provides a comprehensive suite of calculators and design tools for electronic engineering projects. It assists with circuit design, filter analysis, and calculations for various components like resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic tasks.

Highlights
  • Circuit design tools
  • Filter design with graph plotting
  • Resistor, capacitor, inductor design
  • Amplifier calculations
  • Ohm's Law calculator
  • 555 timer calculator
  • PCB trace width calculator
Features
Read full description

Electronic Circuit Calculator is a powerful electronics toolkit combining circuit calculators, circuit analysis, design tools, and interactive simulations in one app. Built for electronics and electrical engineering students, hobbyists, technicians, and engineers, it helps you calculate, analyze, design, and explore electronic circuits. CIRCUIT ANALYSIS & THEORY • Thevenin Theorem • Norton Theorem • Kirchhoff’s Current Law (KCL) • Kirchhoff’s Voltage Law (KVL) • Nodal Analysis • Mesh Analysis • Ohm’s Law • Voltage Divider • Series and Parallel Circuits • RLC Resonance INTERACTIVE CIRCUIT SIMULATIONS Explore electronics with interactive simulations that help you understand circuit behavior. • Buck Converter Simulation • Boost Converter Simulation • Sawtooth Generator Circuit • AND, OR, NAND and NOR Gate Simulations • Shift Register Simulations • Multiplexer (MUX) • Demultiplexer (DEMUX) • Counter IC • PISO and SIPO Simulations POWER ELECTRONICS • Buck Converter Calculator • Boost Converter Calculator • Buck and Boost Simulations DIGITAL ELECTRONICS • Karnaugh Map • Decimal to Binary Converter • Logic Gate Simulations • Multiplexer and Demultiplexer • Counter IC • Shift Registers • PISO and SIPO OP AMP & ANALOG ELECTRONICS • Inverting Amplifier • Non-Inverting Amplifier • Differential Amplifier • Summing Amplifier • Integrator • Differentiator • Comparator • Schmitt Trigger TRANSISTOR, MOTOR & AMPLIFIER TOOLS • Transistor Amplifier Calculator • Transistor Design Tools • Motor Calculations • Stepper Motor Tools • Servo Motor Tools • Power Dissipation FILTER DESIGN • Sallen-Key Active Filters • Butterworth Filters • Chebyshev Filters • Bessel Filters • Band-Pass Filters • Band-Reject Filters • Crossover Filters Graphical visualization is available for supported filter calculations. RESISTOR, CAPACITOR & INDUCTOR TOOLS • Resistor Colour Code • SMD Resistor Code • Resistors in Series and Parallel • Resistor Ratio • LED Series Resistor • Star-Delta / Delta-Star Converter • Pi, Tee and Bridged-Tee Attenuators • Capacitors in Series and Parallel • Capacitor Charge • Capacitor Code • Capacitive Reactance • Inductive Reactance • Inductor Design OTHER ELECTRONICS TOOLS • 555 Timer — Astable and Monostable • Adjustable Voltage Regulator • PCB Trace Width Calculator • Microstrip Trace Width and Impedance • Skin Depth • Coaxial Cable Impedance • Power Calculator • Decibel Converter • Decibel to Watt and Watt to Decibel Electronic Circuit Calculator is useful for circuit analysis, circuit theory, electronic design, electrical calculations, digital electronics, power electronics, filter design, transistor calculations, op amp calculations, and electronics engineering study. Whether you are solving Thevenin, Norton, KCL, KVL, nodal or mesh problems, designing filters and amplifiers, or experimenting with digital ICs and converter simulations, the app brings your essential electronics tools together in one place. Calculate circuits. Analyze networks. Simulate electronics. Learn by interacting.

Screenshots

Resistor Calc+4 screens
Electronics Circuit Calc Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Resistor Calc+ at 67% against Electronics Circuit Calc Pro's 0%. Resistor Calc+ also leads on price (Free vs $3.99) and rating (5.0 vs 4.3). Electronics Circuit Calc Pro's advantage is ads (none vs shown). On ratings volume, update cadence, 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

Resistor Calc+ is free to download; Electronics Circuit Calc Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Resistor Calc+ holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 67% of Resistor Calc+'s written reviews are positive against 0% of Electronics Circuit Calc Pro's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Resistor Calc+ versus Electronics Circuit Calc Pro: the parameters behind the verdict, then further details
ParameterResistor Calc+Electronics Circuit Calc Pro
PriceFree — better$3.99
Rating5.0 (5 ratings) — better4.3 (3 ratings)
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings5 — better3
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size6 MB31 MB
Age rating4+4+
DeveloperEONSOFTAnas Abubakar

Customer experience

Resistor Calc+

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Electronics Circuit Calc Pro

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

In-app purchases

None

Resistor Calc+

No in-app purchases

None

Electronics Circuit Calc Pro

No in-app purchases

Questions

Is Resistor Calc+ free?
Resistor Calc+ is free to download, with no in-app purchases.
Is Electronics Circuit Calc Pro free?
Electronics Circuit Calc Pro costs $3.99, with no in-app purchases.
Which has better reviews, Resistor Calc+ or Electronics Circuit Calc Pro?
Resistor Calc+ is rated higher. Resistor Calc+ averages 5.0 out of 5 from 5 ratings, while Electronics Circuit Calc Pro averages 4.3 from 3 ratings.
Do Resistor Calc+ or Electronics Circuit Calc Pro have ads?
Resistor Calc+ shows ads; Electronics Circuit Calc Pro does not.
Which is updated more often, Resistor Calc+ or Electronics Circuit Calc Pro?
Resistor Calc+ ships an update every 2 months, and Electronics Circuit Calc Pro every 2 months. Most recently, Resistor Calc+ was updated on October 7, 2026 and Electronics Circuit Calc Pro on October 13, 2026.

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