# Electrical Calculator vs Transformer Calc 2

The clearest difference is review sentiment: Electrical Calculator at 53% against Transformer Calc 2's 0%. Electrical Calculator also leads on rating (4.6 vs 1.0) and monetization model (free vs paid). Transformer Calc 2's advantage is update cadence (every 2 months vs every 4 months). On price, ads, in-app purchases and device support there is nothing between them.

Electrical Calculator costs $3.99 and Transformer Calc 2 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electrical Calculator holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Electrical Calculator has 462 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 53% of Electrical Calculator's written reviews are positive against 0% of Transformer Calc 2's.

Electrical Calculator ships an update every 4 months, Transformer Calc 2 every 2 months. The most recent releases landed on October 23, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Electrical Calculator | Transformer Calc 2 |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | **[4.6 (462 ratings)](https://appshunter.io/ios/app/electrical-calculator/id495478153/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/transformer-calc-2/id1597015791/reviews) |
| Number of ratings | **462** | 1 |
| Positive reviews | **53.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 18 MB | 16 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## What reviewers say

### Electrical Calculator

[App page](https://appshunter.io/ios/app/electrical-calculator/id495478153)

This app provides over 65 essential electrical calculation tools and formulas for engineers, students, and professionals. It supports both USCS and SI units and includes features like resistor color code conversion and upgraded voltage drop calculations aligned with industry standards.

**Highlights:** Over 65 electrical calculation tools, Resistor color code calculators, Upgraded voltage drop calculations, Wire size calculations, Series/parallel circuit calculations, Energy cost calculator, Unit conversions

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app, useful for years
- 👍 Good app
- 👍 Brilliant Program
- 👍 Essential shortcut for professionals
- 👍 Works great

**What reviewers complain about**

-  annoyance: popup advising update
- 💸 Paid for calculators, then asked for more
- 💸 Lost money
- 💸 Costs extra for full content
- 📏 No impedance calculators

**Reported bugs**

- Annoying popup for app update
- Converter not working
- App not working on older iPhone models

**Requested features**

- Include impedance calculators
- Improve metric region compatibility for AWG cables


### Transformer Calc 2

[App page](https://appshunter.io/ios/app/transformer-calc-2/id1597015791)

This app provides electricians with instant transformer sizing and advanced construction math, compliant with both US (NEC 2023) and Canadian (CEC 2024) electrical codes. It simplifies complex calculations for wire, conduit, and overcurrent protection, and includes a fractional construction calculator.

**Highlights:** Dual code compliance (NEC 2023, CEC 2024), Instant transformer sizing, Wire and conduit sizing, Overcurrent protection calculation, Fractional construction calculator, Unit conversion, Dark mode support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculator free?

Electrical Calculator costs $3.99, with no in-app purchases.

### Is Transformer Calc 2 free?

Transformer Calc 2 costs $3.99, with no in-app purchases.

### Which has better reviews, Electrical Calculator or Transformer Calc 2?

Electrical Calculator is rated higher. Electrical Calculator averages 4.6 out of 5 from 462 ratings, while Transformer Calc 2 averages 1.0 from 1 ratings.

### Do Electrical Calculator or Transformer Calc 2 have ads?

Neither Electrical Calculator nor Transformer Calc 2 shows ads.

### Which is updated more often, Electrical Calculator or Transformer Calc 2?

Electrical Calculator ships an update every 4 months, and Transformer Calc 2 every 2 months. Most recently, Electrical Calculator was updated on October 23, 2026 and Transformer Calc 2 on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*