Comparison

Ohms Law Calc. vs Series Parallel Circuit Solver

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

Head to head
About

Ohms Law Calc.

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

Highlights
  • Ohm's Law calculations
  • Voltage drop calculator
  • Wire size calculator
  • Impedance calculations (R, L, C)
  • Electrical unit converters
  • Power and current conversions
  • Circuit design tools
Features
Read full description

Ohm's Law Calc. consists of 60 Electrical Calculators with Formulas and Circuits and 16 Electrical Converters. • Voltage Calculator • Current Calculator • Resistance Calculator • Power Calculator • Voltage Drop Calculator • Wire Size Calculator • DC Generator Calculator • Transformer Calculations (Voltage & Current) Impedance Calculators Calculate impedance for combinations of resistors (R), inductors (L), and capacitors (C) in both series and parallel configurations: • R and L in Series / Parallel • R and C in Series / Parallel • L and C in Series / Parallel • R, L and C in Series / Parallel Power and Current Conversions • kVA to Amps (Single Phase & Three Phase) • Amps to kVA (Single Phase & Three Phase) • Single Phase & Three Phase Power Calculators • Horsepower Calculators (DC, Single Phase, Three Phase) Efficiency and Power Factor Tools • Efficiency Calculators (DC, Single Phase, Three Phase) • Power Factor Calculators (Single Phase & Three Phase) Energy Storage Calculators • Energy Cost Calculator • Energy Storage Calculators (Resistance, Inductance, Capacitance) Circuit Design Tools • Star-to-Delta and Delta-to-Star Conversions • Inductive & Capacitive Reactance Calculators • Resonant Frequency Calculator • Inductor and Capacitor Sizing Equations Component Calculations • Series and Parallel Calculators for Resistance, Inductance, and Capacitance • Unknown Resistance and Capacitance Calculators (Series & Parallel) More Calculations • Neutral Current (3-Phase Unbalanced Loads) • Characteristic Impedance (Parallel & Coaxial) • Transformer Calculator • Voltage Divider Calculator Illumination Calculators • Luminous Intensity Calculator • Luminous Flux Calculator • Solid Angle Calculator Electrical Converters • Field Strength Converter • Electrical Potential Converter • Resistance and Resistivity Converters • Conductance and Conductivity Converters • Capacitance and Inductance Converters • Charge Converters: Handles conversions for electrical charge, including: • Linear Charge Density • Surface Charge Density • Volume Charge Density • Linear Current Density • Surface Current Density • Power Converter App works with both iPhones, iPads and Mac Multiple Unit Compatibility: Supports a wide range of units for all electrical parameters, including Ohms, kiloOhms, Farads, Henrys, kVA, Volts, Weber, and more.

About

Series Parallel Circuit Solver

Calculate resistors, capacitors, and inductors in series and parallel circuits. This tool simplifies complex electrical circuit analysis for professionals and students, providing instant, accurate results for various configurations.

Highlights
  • Series and parallel calculations
  • Resistor, capacitor, and inductor calculation
  • Mixed circuit solver
  • User-friendly interface
  • Instant results
  • Circuit analysis
Read full description

Series Parallel Circuit Solver is the easy way to build any series, parallel or mixed circuit and get the answer instantly. Draw your circuit by tapping, see the equivalent resistance, capacitance or inductance live, and follow every step of the solution. A complete series parallel calculator, parallel resistor calculator and resistor color code tool for students, hobbyists and technicians. BUILD ANY CIRCUIT BY TAPPING • Add resistors, capacitors or inductors in series or in parallel with one tap • Group parts to make mixed series-parallel circuits of any size • Copy, delete, undo and redo, and zoom in on big circuits • The answer updates live while you build • Choose the zigzag (US) or box (IEC) resistor symbol DC AND AC CIRCUITS • DC: solve resistors, capacitors or inductors in series and parallel • AC: mix R, L and C in one circuit at any frequency • Impedance in polar and rectangular form, with the phase angle • A true RLC impedance calculator for AC homework VOLTAGE, CURRENT AND POWER OF EVERY PART • Add a voltage or current source to your circuit • Get a clear results table: voltage, current and power for each resistor • In AC circuits, also see real, reactive and apparent power and the power factor (leading or lagging) • Show the voltages right on the circuit drawing STEP-BY-STEP SOLUTION • See how the circuit is solved, one step at a time • Every step shows the formula and the numbers used • Perfect for homework, lab reports and exam practice • Learn how equivalent resistance is really found, not just the final number READY-MADE TEMPLATES Start fast with a series chain, parallel bank, mixed circuit, ladder, two banks, lab circuit, capacitor bank or speaker crossover. QUICK SERIES & PARALLEL CALCULATOR • Type values on a circuit keypad, for example 10k ‖ 10k + 4.7k • Works for resistors, capacitors and inductors • Live total, drawing and steps as you type • The fastest parallel resistor calculator for quick checks RESISTOR COLOR CODE CALCULATOR • Bands to value: 3, 4, 5 and 6 band resistors, with tolerance and temperature coefficient • Value to bands: enter any value and see its color bands • Nearest standard value from E6 to E192 RESISTOR COMBINATION FINDER • Need a value you don't have? Make it from standard resistors • Uses 1 or 2 resistors in series or parallel (E6 to E96) • Best match first, with error % and tolerance range • Exclude values you don't have in your drawer • Send any result to the circuit builder in one tap SHARE AND SAVE • Export your circuit drawing and results table as an image • Share it or save it to Photos for assignments and notes • All your exported files stay in "My files": open, share, save, rename or delete HISTORY AND SAVED CIRCUITS • Every circuit is kept in History with the date • Save circuits with a name, then rename, duplicate or delete them • Search your circuits by name MADE THE WAY YOU LIKE • Light, dark or system theme • Choose 3 to 6 digits in answers • Engineering prefixes on or off (3.20 kΩ or 3197 Ω) • Pick your default E-series WORKS OFFLINE No internet needed, nothing to sign up for, no account. Your circuits stay on your phone. WHO IS IT FOR • Physics and electrical engineering students in school, college and university • Electronics hobbyists, makers and repair technicians • Teachers who want clear, step-by-step circuit examples Whether you need a simple series resistance calculator, a parallel resistance calculator, a resistor calculator with color code, a capacitor calculator, an inductor calculator or a full circuit solver for mixed series-parallel circuits, Series Parallel Circuit Solver gives you the right answer and shows you how it was found. Download now and solve your next circuit in seconds.

Screenshots

Ohms Law Calc.4 screens
Series Parallel Circuit Solver4 screens

Verdict

The call

The clearest difference is in-app purchases: Series Parallel Circuit Solver at none against Ohms Law Calc.'s 1. Series Parallel Circuit Solver also leads on iOS requirement (15.5 vs 17.6). Ohms Law Calc.'s advantage is update cadence (every 2 months vs every 24 months) and ratings volume (1.3K vs 4). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ohms Law Calc. sells 1 one-off in-app purchase. Series Parallel Circuit Solver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ohms Law Calc. holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Ohms Law Calc. has 1.3K ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Ohms Law Calc. ships an update every 2 months, Series Parallel Circuit Solver every 24 months. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Ohms Law Calc. versus Series Parallel Circuit Solver: the parameters behind the verdict, then further details
ParameterOhms Law Calc.Series Parallel Circuit Solver
PriceFreeFree
Rating4.7 (1.3K ratings) — better4.5 (4 ratings)
Positive reviews50.0% of reviews—
Number of ratings1.3K — better4
Update frequencyEvery 2 months — betterEvery 24 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.5 — better
Further details — not scored
Size59 MB35 MB
Age rating4+4+
DeveloperV PUGAZHENTHIMuhammad Awais Younas

Customer experience

Ohms Law Calc.

All ratings1,326 ratings
Positive92.8%
Neutral3.5%
Negative3.7%
Written reviews44 reviews
Positive50.0%
Neutral6.8%
Negative43.2%

Series Parallel Circuit Solver

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Ohms Law Calc.

Reported bugs

3 issues
  • Paid version not unlocking
  • Repeatedly prompting for payment after already paid
  • Keyboard overlaying results making it difficult to see

Requested features

3 requests
  • Add more electrical conversions and calculations
  • Add ability to input voltage and resistance to get amps and watts
  • Add kVA, rms, and other popular needed conversions

Series Parallel Circuit Solver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Ohms Law Calc.

One-time1
  • Ohms Law Calc.$3.99
None

Series Parallel Circuit Solver

No in-app purchases

Questions

Is Ohms Law Calc. free?
Ohms Law Calc. is free to download, with in-app purchases available.
Is Series Parallel Circuit Solver free?
Series Parallel Circuit Solver is free to download, with no in-app purchases.
Which has better reviews, Ohms Law Calc. or Series Parallel Circuit Solver?
Ohms Law Calc. is rated higher. Ohms Law Calc. averages 4.7 out of 5 from 1.3K ratings, while Series Parallel Circuit Solver averages 4.5 from 4 ratings.
Do Ohms Law Calc. or Series Parallel Circuit Solver have ads?
Both Ohms Law Calc. and Series Parallel Circuit Solver show ads.
Which is updated more often, Ohms Law Calc. or Series Parallel Circuit Solver?
Ohms Law Calc. ships an update every 2 months, and Series Parallel Circuit Solver every 24 months. Most recently, Ohms Law Calc. was updated on October 24, 2026 and Series Parallel Circuit Solver on October 24, 2026.

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