Comparison

Transformer Calc 2 vs NX Connect

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

Head to head
About

Transformer Calc 2

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
Read full description

The essential tool for electricians. Now updated for 2024 CEC and 2023 NEC. Instant transformer sizing and advanced construction math in one app. Description Simplify your electrical calculations with Transformer Calculator 2. Designed for professional electricians, electrical engineers, and apprentices, Transformer Calculator 2 eliminates the guesswork from complex electrical math. Whether you are sizing a new install or verifying an existing setup, this app provides instant, code-compliant results for both US (NEC 2023) and Canadian (CEC 2024) standards. KEY FEATURES: DUAL CODE COMPLIANCE Toggle Instantly: Seamlessly switch between the 2024 CEC (Canada) and 2023 NEC (USA) with a single tap in settings. Localized Standards: The app automatically adjusts wire types, ampacities, and conduit fill rules based on your selected code. COMPREHENSIVE TRANSFORMER SIZING Input Flexibility: Simply enter your KVA, primary and secondary voltages, and configuration (Delta or Wye). Instant Results: Get immediate calculations for Full Load Amps (FLA), Overcurrent Protection (Fuse or Breaker), and Bonding. Wire and Conduit: Automatically sizes your Primary and Secondary wires (minimum size and ampacity) and Conduits (minimum pipe size and fill) based on the latest tables. ADVANCED CONSTRUCTION CALCULATOR Fractional Math: Built-in construction calculator that handles feet, inches, and fractions (1/16, 1/8, etc.) with ease. Unit Conversion: Quickly convert between metric and imperial or different unit scales. Volume and Area: Perform complex dimensional calculations right on the job site. PROFESSIONAL AND CUSTOMIZABLE Detailed References: Extensive database of wire types (THHN, THW, XHHW, etc.) and conduit types (EMT, ENT, Rigid PVC, etc.). Dark Mode: Fully supports system Dark Mode and tinted icons for comfortable viewing in low-light job sites. Custom Settings: Set your default wire types, temperature ratings (60, 75, or 90 degrees C), and precision preferences to match your daily workflow. Stop flipping through code books for every calculation. Download Transformer Calculator 2 today and carry the code in your pocket.

About

NX Connect

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
Read full description

NX Connect is a distributed room-based lighting controls solution. For application spaces in need of a system that is simple, easy to install and code complaint, NX Connect is our mobile, app-based wireless controls system. NX Connect provides zonal control and commissioning of lighting systems. The NX Connect mobile app and wireless devices allow customers to zone lighting fixtures, saving installation time and expertise required to commission room-based lighting systems.

Screenshots

Transformer Calc 24 screens
NX Connect3 screens

Verdict

The call

The clearest difference is price: NX Connect at Free against Transformer Calc 2's $3.99. NX Connect also leads on rating (3.0 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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

NX Connect holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Transformer Calc 2 ships an update every 2 months, NX Connect every 12 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

Scorecard6 real differences · 4 level
Transformer Calc 2 versus NX Connect: the parameters behind the verdict, then further details
ParameterTransformer Calc 2NX Connect
Price$3.99Free — better
Rating1.0 (1 ratings)3.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 2 months — betterEvery 12 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.012.0 — better
Further details — not scored
Size16 MB14 MB
Age rating4+4+
DeveloperSnappy Appz Inc.Current Lighting Solutions, LLC

Customer experience

Transformer Calc 2

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

NX Connect

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Transformer Calc 2

No in-app purchases

None

NX Connect

No in-app purchases

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 3.0 from 1 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 June 1, 2026 and NX Connect on September 9, 2026.

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