Comparison

Ohms Law Calc. vs CableApp

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

CableApp

This tool assists professionals in selecting the optimal cabling solution for their projects. It calculates the best cross-section, offers money and CO2 saving advice, and provides access to technical documentation and industry news.

Highlights
  • Optimal cross-section calculation
  • Money and CO2 saving advice
  • Access to technical documentation
  • Direct link to product catalogs
  • Save, print, and share results
  • Industry news and videos
Features
Read full description

Developed by the world leading cable manufacturer Prysmian Group, Cable App is the professional easy to use tool which helps you select the best type of cabling solution depending on the type of project and installation. It calculates the optimal cross-section providing useful advices for money and CO2 saving. Enriched by pictures and technical documentation, it offers additional features like direct link to product catalogues, the possibility to easily save, print or share results with other people, and the access to freshly released news and videos related to the world of electrical installers, professionals, and consultants and engineers. It offers the research both by basic cable attributes and by professional system parameters. Be sure of the right cable choice in an easy and quick manner. Rely on the n.1 experts of the industry: chose Cable App and Prysmian Group cabling solution as your daily partners. Prysmian Group is world leader in the energy and telecom cable systems industry. With almost 140 years of experience, sales of about €11 billion in 2018, over 30,000 employees across 50 countries and 112 plants, the Group is strongly positioned in high-tech markets and offers the widest possible range of products, services, technologies and know-how.

Screenshots

Ohms Law Calc.4 screens
CableApp4 screens

Verdict

The call

The clearest difference is rating: Ohms Law Calc. at 4.7 against CableApp's 3.0. Ohms Law Calc. also leads on ratings volume (1.3K vs 2). CableApp's advantage is in-app purchases (none vs 1) and review sentiment (61% vs 50%). On price, update cadence, 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. CableApp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ohms Law Calc. holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Ohms Law Calc. has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Ohms Law Calc.'s written reviews are positive against 61% of CableApp's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
Ohms Law Calc. versus CableApp: the parameters behind the verdict, then further details
ParameterOhms Law Calc.CableApp
PriceFreeFree
Rating4.7 (1.3K ratings) — better3.0 (2 ratings)
Positive reviews50.0% of reviews61.1% of reviews — better
Number of ratings1.3K — better2
Update frequencyEvery 2 monthsEvery 2 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size59 MB57 MB
Age rating4+4+
DeveloperV PUGAZHENTHIPrysmian Group

Customer experience

Ohms Law Calc.

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

CableApp

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews18 reviews
Positive61.1%
Neutral5.6%
Negative33.3%

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

CableApp

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

CableApp

No in-app purchases

Questions

Is Ohms Law Calc. free?
Ohms Law Calc. is free to download, with in-app purchases available.
Is CableApp free?
CableApp is free to download, with no in-app purchases.
Which has better reviews, Ohms Law Calc. or CableApp?
Ohms Law Calc. is rated higher. Ohms Law Calc. averages 4.7 out of 5 from 1.3K ratings, while CableApp averages 3.0 from 2 ratings.
Do Ohms Law Calc. or CableApp have ads?
Both Ohms Law Calc. and CableApp show ads.
Which is updated more often, Ohms Law Calc. or CableApp?
Ohms Law Calc. ships an update every 2 months, and CableApp every 2 months. Most recently, Ohms Law Calc. was updated on October 14, 2026 and CableApp on October 10, 2026.

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