# Transformer Calc 2 vs NX Connect

The clearest difference is price: NX Connect at Free against Transformer Calc 2's $3.99. NX Connect also leads on rating (2.0 vs 1.0) and iOS requirement (12.0 vs 26.0). Transformer Calc 2's advantage is ads (none vs shown) and update cadence (every 2 months vs every 12 months). On ratings volume, in-app purchases and device support there is nothing between them.

NX Connect is free to download; Transformer Calc 2 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NX Connect holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Transformer Calc 2 ships an update every 2 months, NX Connect every 12 months. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Transformer Calc 2 | NX Connect |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/transformer-calc-2/id1597015791/reviews) | **[2.0 (2 ratings)](https://appshunter.io/ios/app/nx-connect/id1640184713/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Paid | **Ad-supported** |
| Size | 16 MB | 14 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) | [Current Lighting Solutions, LLC](https://appshunter.io/developer/1494506816) |

## What reviewers say

### 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


### NX Connect

[App page](https://appshunter.io/ios/app/nx-connect/id1640184713)

This app offers a wireless controls system for distributed room-based lighting. It simplifies installation and commissioning of lighting systems by allowing users to zone fixtures via a mobile app and wireless devices.

**Highlights:** Distributed room-based lighting controls, Wireless controls system, Zonal control of lighting fixtures, Simplified installation, Code compliant solution, App-based commissioning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Transformer Calc 2 free?

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

### Is NX Connect free?

NX Connect is free to download, with no in-app purchases.

### Which has better reviews, Transformer Calc 2 or NX Connect?

NX Connect is rated higher. Transformer Calc 2 averages 1.0 out of 5 from 1 ratings, while NX Connect averages 2.0 from 2 ratings.

### Do Transformer Calc 2 or NX Connect have ads?

NX Connect shows ads; Transformer Calc 2 does not.

### Which is updated more often, Transformer Calc 2 or NX Connect?

Transformer Calc 2 ships an update every 2 months, and NX Connect every 12 months. Most recently, Transformer Calc 2 was updated on October 5, 2026 and NX Connect on October 24, 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.*