Comparison

Cable Calc vs Voltage Drop Calculators

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

Head to head
About

Cable Calc

Calculate the minimum required cable size for single and three-phase circuits based on BS 7671 standards. Input design criteria, installation methods, and environmental factors to determine appropriate cable dimensions. Save or print detailed results for your projects.

Highlights
  • Calculate single and three-phase radial circuits
  • Calculate single-phase ring final circuits
  • Based on BS 7671 standards
  • Enter design criteria
  • Select cable type, installation method, ambient temperature, and grouping
  • Save or print results
  • Add circuit and client details
Features
Read full description

A cable size calculator based on BS 7671 for calculating single phase and three phase radial circuits and single phase ring final circuits. Calculate the minimum required cable size based on the tables within BS 7671 and print or save the results. STEP 1: Enter your design criteria and select a cable type. STEP 2: Select an installation method, ambient temperate and grouping. Option to enter a circuit reference and circuit description. Option to enter a client name and installation address. Option to add a signatory. Check out our full collection of electrical apps & software packages for electricians at https://www.procertssoftware.com/apps/

About

Voltage Drop Calculators

This tool helps electrical professionals and students perform quick and accurate voltage drop calculations. It features a user-friendly interface, a material database, and the ability to save circuit details for efficient system design and compliance.

Highlights
  • Fast voltage drop calculations
  • Built-in material database
  • Custom material support
  • Save circuit details
  • Unit conversion
  • Recommended wire size guidance
Features
Read full description

The Voltage Drop Calculator app is a practical and reliable tool designed for electrical engineers, technicians, electricians, and students who need quick and accurate voltage drop calculations. It helps ensure electrical systems are designed efficiently, safely, and in compliance with standards. With a simple and intuitive interface, the app allows you to calculate voltage drop by entering key parameters such as cable length, load current, conductor type, and wire size. Results are generated instantly, saving time and reducing calculation errors during planning and installation. The app includes a built-in conductor material database, featuring commonly used materials like copper and aluminum with accurate resistivity values. For specialized applications, users can also define custom materials to match project requirements. To support real-world electrical work, the app lets you save and manage circuit details, making it easy to revisit calculations and maintain organized records for future reference. Flexible unit conversion options allow seamless switching between metric and imperial units, ensuring compatibility across different standards and regions. Key Highlights: - Fast and accurate voltage drop calculations - Built-in material database with custom material support - Clear and detailed calculation results - Voltage drop percentage and load-end voltage output - Recommended wire size guidance - Easy unit conversion (length, diameter, and more) - Simple, user-friendly design for all experience levels Whether you’re designing a new circuit, verifying an installation, or learning electrical fundamentals, the Voltage Drop Calculator app provides a dependable solution for everyday electrical calculations.

Screenshots

Cable Calc4 screens
Voltage Drop Calculators4 screens

Verdict

The call

The clearest difference is price: Voltage Drop Calculators at $3.99 against Cable Calc's $14.99. Cable Calc's advantage is iOS requirement (11.0 vs 15.6). On update cadence, ads, in-app purchases and monetization model 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

Cable Calc costs $14.99 and Voltage Drop Calculators $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Cable Calc ships an update every 4 months, Voltage Drop Calculators every 7 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
Cable Calc versus Voltage Drop Calculators: the parameters behind the verdict, then further details
ParameterCable CalcVoltage Drop Calculators
Price$14.99$3.99 — better
Rating—4.0 (4 ratings) — better
Positive reviews16.7% of reviews—
Number of ratings—4 — better
Update frequencyEvery 4 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size3 MB67 MB
Age rating4+4+
DeveloperPro Certs Software LtdKantaben Gorasiya

Customer experience

Cable Calc

Written reviews12 reviews
Positive16.7%
Neutral16.7%
Negative66.7%

Voltage Drop Calculators

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Cable Calc

No in-app purchases

None

Voltage Drop Calculators

No in-app purchases

Questions

Is Cable Calc free?
Cable Calc costs $14.99, with no in-app purchases.
Is Voltage Drop Calculators free?
Voltage Drop Calculators costs $3.99, with no in-app purchases.
Do Cable Calc or Voltage Drop Calculators have ads?
Neither Cable Calc nor Voltage Drop Calculators shows ads.
Which is updated more often, Cable Calc or Voltage Drop Calculators?
Cable Calc ships an update every 4 months, and Voltage Drop Calculators every 7 months. Most recently, Cable Calc was updated on October 14, 2026 and Voltage Drop Calculators on October 13, 2026.

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