Comparison

PLC Pro vs Transformer Calculation Tool

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

Head to head
About

PLC Pro

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PLC Pro is the essential professional calculator designed specifically for instrumentation engineers, technicians, and control systems specialists. Streamline your fieldwork with precise tools for signal calibration, alarm configuration, and PLC/DCS integrationsβ€”all in one powerful, pocket-sized app. Key Features: β€’ Multi-Signal Support – Effortlessly handle 4-20mA, 0-20mA, or 0-10V signals β€’ 5-Point Signal Check – Generate instant calibration checkpoints at 0%, 25%, 50%, 75%, and 100% β€’ Raw Count Conversion – Seamlessly convert between ADC/DAC counts and engineering units for any PLC or DCS system β€’ Alarm Setpoint Calculator – Compute low/high pre-trip and trip values with deadband resets β€’ Deviation Alarms – Apply deviation percentages and view values across all checkpoints β€’ Square Root Extraction – Built-in calculations for flow transmitters β€’ Save & Organize – Store unlimited calculations for fast field reference β€’ Fault Detection Reference – Integrated NAMUR NE43 guidelines for reliable signal diagnostics Ideal For: Instrument technicians β€’ Control systems engineers β€’ PLC/DCS programmers β€’ Process engineers β€’ Maintenance professionals β€’ Automation specialists Elevate your instrumentation workflow with PLC Proβ€”accuracy and efficiency at your fingertips.

About

Transformer Calculation Tool

Features
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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: β€’ Transformer voltage and current calculations β€’ Turns ratio and power estimation β€’ Supports electrical engineering formulas β€’ Fast, accurate, and easy-to-use interface β€’ Ideal for students, electricians, and professionals β€’ 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

PLC Pro4 screens
Transformer Calculation Tool4 screens

Verdict

The call

The clearest difference is price: Transformer Calculation Tool at Free against PLC Pro's $9.99. Transformer Calculation Tool also leads on iOS requirement (13.0 vs 15.1). PLC Pro's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 4 weeks). On ads and device support there is nothing between them.

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

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

Transformer Calculation Tool is free to download; PLC Pro costs $9.99 up front. Transformer Calculation Tool sells 1 one-off in-app purchase. PLC Pro asks for nothing beyond the download.

UpkeepUpdate frequency

PLC Pro ships an update every 5 days, Transformer Calculation Tool every 4 weeks. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

Scorecard4 real differences Β· 2 level
PLC Pro versus Transformer Calculation Tool: the parameters behind the verdict, then further details
ParameterPLC ProTransformer Calculation Tool
Price$9.99Free β€” better
Update frequencyEvery 5 days β€” betterEvery 4 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS15.113.0 β€” better
Further details β€” not scored
Size47 MB57 MB
Age rating4+4+
DeveloperJames JohnsonShraddhaben Parmar

In-app purchases

None

PLC Pro

No in-app purchases

1 purchases

Transformer Calculation Tool

One-time1
  • Lifetime premium$9.99

Questions

Is PLC Pro free?
PLC Pro costs $9.99, with no in-app purchases.
Is Transformer Calculation Tool free?
Transformer Calculation Tool is free to download, with in-app purchases available.
Do PLC Pro or Transformer Calculation Tool have ads?
Neither PLC Pro nor Transformer Calculation Tool shows ads.
Which is updated more often, PLC Pro or Transformer Calculation Tool?
PLC Pro ships an update every 5 days, and Transformer Calculation Tool every 4 weeks. Most recently, PLC Pro was updated on October 7, 2026 and Transformer Calculation Tool on October 3, 2026.

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