Comparison

Transformer Calculator Plus vs Electrical Calculation Tools

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

Head to head
About

Transformer Calculator Plus

This utility app calculates key parameters for transformers, including voltage, current, and turns ratio. It helps determine if a transformer is step-up or step-down, essential for power conversion applications.

Highlights
  • Calculate primary and secondary voltage
  • Calculate primary and secondary current
  • Calculate transformer turns ratio
  • Determine step-up or step-down transformer
  • Supports AC voltage calculations
Features
Read full description

Transformer Calculator calculate any parameter within the transformer equation, including primary and secondary voltage, current, and turns. Transformer Calculations Include: Transformer Turns Ratio – Current and Turns Transformer Turns Ratio – Voltage and Turns Transformer Turns Ratio – Voltage and Current The result will indicate whether the transformer is step-up or step-down. Transformers are primarily used as power converters. The two types—step-up and step-down—operate on the same principle but in opposite directions. A step-up transformer converts a lower AC voltage to a higher voltage, while a step-down transformer reduces a higher AC voltage to a lower level. For example, if a country uses 110 V power, a step-up transformer converts it to 220 V, and a step-down transformer does the reverse. Both work with alternating current (AC). A transformer consists of a soft iron core with two coils wound around it, which are not electrically connected. These coils may be wound on separate limbs of the iron core or placed one over the other. The coil to which the alternating voltage is applied is called the primary coil or primary winding. When an alternating voltage is applied, the resulting alternating current in the primary winding generates a changing magnetic field. This changing field induces an alternating current in the secondary coil. The magnitude of the induced voltage depends on the number of turns in the secondary winding. All transformers have a nameplate rating. It is best to operate them within the voltage limits specified. Using a step-down transformer below its rated limit can support a wide range of applications, but exceeding the specified limit is dangerous and may cause electrical failure. The relationship between voltage, current, and the number of turns in each coil is given by: Vp/Vs = Np/Ns = Is/Ip Where: Vp – Primary voltage Vs – Secondary voltage Np – Primary turns Ns – Secondary turns Ip – Primary current Is – Secondary current Thank you for your support, and please visit nitrio.com for more apps for your iOS devices.

About

Electrical Calculation Tools

Features
Read full description

Mobile Electrician Calculator is a powerful and easy-to-use tool designed for electricians, electrical engineers, students, and anyone working with electrical systems. This app brings essential electrical formulas and calculations right to your mobile device—making work faster, more accurate, and more convenient. Whether you're troubleshooting, designing circuits, or estimating power usage, the app offers precise calculators to save time and reduce errors. Key Tools Included: Ohm’s Law Calculator Quickly calculate voltage, current, resistance, or power with simple input fields. LC Resonance Calculator Find resonant frequency, inductance, and capacitance for AC circuits with accuracy. Delta–Y (Wye) Transformer Conversion Convert between Delta and Wye configurations in seconds—perfect for three-phase systems. Electrical Energy Calculator Estimate energy usage and cost of appliances for better planning and budgeting. Current Density Calculator Calculate current per unit area to select the right conductor size and prevent overheating. Designed for speed, accuracy, and convenience, Mobile Electrician Calculator is an essential tool for fieldwork, classroom learning, and electrical design. With its user-friendly interface and multiple built-in calculators, it simplifies complex math and helps users complete jobs more efficiently.

Screenshots

Transformer Calculator Plus4 screens
Electrical Calculation Tools4 screens

Verdict

The call

The clearest difference is update cadence: Electrical Calculation Tools at every 5 months against Transformer Calculator Plus's every 45 months. Electrical Calculation Tools also leads on price ($1.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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

Transformer Calculator Plus costs $2.99 and Electrical Calculation Tools $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Transformer Calculator Plus ships an update every 45 months, Electrical Calculation Tools every 5 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
Transformer Calculator Plus versus Electrical Calculation Tools: the parameters behind the verdict, then further details
ParameterTransformer Calculator PlusElectrical Calculation Tools
Price$2.99$1.99 — better
Rating3.3 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 45 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size1 MB37 MB
Age rating4+4+
DeveloperNitrioKantaben Gorasiya

In-app purchases

None

Transformer Calculator Plus

No in-app purchases

None

Electrical Calculation Tools

No in-app purchases

Questions

Is Transformer Calculator Plus free?
Transformer Calculator Plus costs $2.99, with no in-app purchases.
Is Electrical Calculation Tools free?
Electrical Calculation Tools costs $1.99, with no in-app purchases.
Do Transformer Calculator Plus or Electrical Calculation Tools have ads?
Neither Transformer Calculator Plus nor Electrical Calculation Tools shows ads.
Which is updated more often, Transformer Calculator Plus or Electrical Calculation Tools?
Transformer Calculator Plus ships an update every 45 months, and Electrical Calculation Tools every 5 months. Most recently, Transformer Calculator Plus was updated on September 10, 2026 and Electrical Calculation Tools on September 9, 2026.

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