Comparison

LineConstants vs Transformer Calculation Tool

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

Head to head
About

LineConstants

Features
Read full description

LineConstants is a professional tool for calculating the parameters of overhead (OHL) and cable (CL) power transmission lines. This app is ideal for engineers, designers, energy specialists, and technical students. Key Features: Fast and accurate calculation of resistances and admittances for both OHL and CL Multi-section line modeling with multiple circuits Support for split conductors and grounding configurations Cable modeling with core arrangement and screen grounding Comprehensive built-in directories: supports, conductors, cables, ground wires, insulators, soil types, and voltage classes Export results to PDF and share with other apps Flexible language settings, frequency selection, and temperature adjustments LineConstants is built for professionals who demand accuracy, efficiency, and control. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Transformer Calculation Tool

Features
Read full description

Easy Transformer Calculator is a practical and accurate tool designed for electricians, engineers, technicians, and students. Perform transformer calculations instantly with a clean and easy-to-use interface. Whether you're working with electrical systems, power distribution, or learning transformer theory, this app helps simplify complex calculations and improve accuracy. Key Features: • Transformer voltage and current calculations • Turns ratio and power estimation • Supports electrical engineering formulas • Fast, accurate, and easy-to-use interface • Ideal for students, electricians, and professionals • Useful for industrial and educational applications Save time, reduce calculation errors, and simplify transformer analysis with Easy Transformer Calculator. in-app purchase included Lifetime to Remove Ads Privacy Policy : https://docs.google.com/document/d/1A79qPsEUJu1rXjqsSUct_IBBAewiuBK5b8Dz-SPD0CY/edit?usp=sharing Terms & Condition : https://docs.google.com/document/d/1_yiolHxlRnOnEZk_sgPThQ0hggtlZAKCM6NvqDOE8Gs/edit?usp=sharing

Screenshots

LineConstants4 screens
Transformer Calculation Tool4 screens

Verdict

The call

The clearest difference is iOS requirement: Transformer Calculation Tool at 13.0 against LineConstants's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. LineConstants sells 2 in-app purchases, starting at $9.99 per month and Transformer Calculation Tool sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

LineConstants ships an update every 2 months, Transformer Calculation Tool every 4 weeks. The most recent releases landed on September 12, 2026 and September 16, 2026 respectively.

Scorecard1 real difference Ā· 5 level
LineConstants versus Transformer Calculation Tool: the parameters behind the verdict, then further details
ParameterLineConstantsTransformer Calculation Tool
PriceFreeFree
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size33 MB57 MB
Age rating4+4+
DeveloperSergey GussevShraddhaben Parmar

In-app purchases

2 purchases

LineConstants

Subscriptions2
  • Monthly$9.991 Month
  • Yearly$19.991 Year
1 purchases

Transformer Calculation Tool

One-time1
  • Lifetime premium$9.99

Questions

Is LineConstants free?
LineConstants is free to download, with in-app purchases available.
Is Transformer Calculation Tool free?
Transformer Calculation Tool is free to download, with in-app purchases available.
Do LineConstants or Transformer Calculation Tool have ads?
Neither LineConstants nor Transformer Calculation Tool shows ads.
Which is updated more often, LineConstants or Transformer Calculation Tool?
LineConstants ships an update every 2 months, and Transformer Calculation Tool every 4 weeks. Most recently, LineConstants was updated on September 12, 2026 and Transformer Calculation Tool on September 16, 2026.

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