Comparison

Fault Current Calculator vs Leviton Smart Sensor

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

Head to head
About

Fault Current Calculator

This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.

Highlights
  • Calculate available fault current
  • Size fuses and conductors
  • Generate service equipment labels
  • Single and three-phase system support
  • NEC® 110.24 compliance
Features
Read full description

Eaton's Bussmann Series FC2 Available Fault Current Calculator application is an innovative tool developed for contractors, engineers, electricians, and electrical inspectors. This tool can be used on the Bussmann website or out in the field on a mobile device for those needing a quick and simple way to determine available fault current. With this simple tool, users can: - Calculate available fault current on single and three-phase systems - Create and send a label via email for marking the available fault current on service equipment (NEC® 110.24) - Size fuses and conductors for service, feeder, and branch circuits. This application, calculations, and other information are intended to clearly present technical information that will determine the available fault current at specific points in an electrical system. Bussmann reserves the right, without notice, to change this application and/or discontinue/ limit its distribution and/or availability. Bussmann also reserves the right to change or update, without notice, any technical information contained in this application. The data and information presented in this application are believed to be accurate. However, any and all liability for the content, or any omissions from this application, including any inaccuracies, errors, or misstatements in such data, calculations or information, is expressly disclaimed. The application, calculations and other information are provided without warranty of any kind, either expressed or implied, but not limited to, the implied warranties of merchantability, or fitness for a particular purpose. Bussmann disclaims any liability for the use of this application, calculations or other information. The complete End-User License Agreement can be found at: https://faultcurrentcalculatorpro.bussmann.com/home/eula

About

Leviton Smart Sensor

Configure and interact with Leviton Smart Sensor products. Tailor sensor settings to specific space requirements and comply with energy codes. Suitable for installers, building maintenance, and end-users.

Highlights
  • Configure smart sensor products
  • Set space requirements
  • Comply with energy codes
  • Interact with sensors
  • Suitable for installers and end-users
Features
Read full description

This app can be used to interact with any of Leviton’s Smart Sensor products. The application allows user’s to configure the sensor based on the requirements for the space and per the industry’s latest energy code requirements. Application is appropriate to be used by installers, building maintainers, and end-users.

Screenshots

Fault Current Calculator4 screens
Leviton Smart Sensor4 screens

Verdict

The call

The clearest difference is review sentiment: Leviton Smart Sensor at 67% against Fault Current Calculator's 0%. Leviton Smart Sensor also leads on rating (3.9 vs 3.1) and in-app purchases (none vs 2). On price, ratings volume, update cadence and ads 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

Both are free to download. Fault Current Calculator sells 2 in-app purchases, starting at $4.99 per month. Leviton Smart Sensor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Leviton Smart Sensor holds the better App Store score, 3.9 against 3.1. Both are backed by a comparable volume of ratings — 23 and 9 respectively. Written reviews point the same way: 0% of Fault Current Calculator's written reviews are positive against 67% of Leviton Smart Sensor's.

UpkeepUpdate frequency

Fault Current Calculator ships an update every 4 months, Leviton Smart Sensor every 5 months. The most recent releases landed on August 20, 2026 and September 11, 2026 respectively.

Scorecard4 real differences · 6 level
Fault Current Calculator versus Leviton Smart Sensor: the parameters behind the verdict, then further details
ParameterFault Current CalculatorLeviton Smart Sensor
PriceFreeFree
Rating3.1 (23 ratings)3.9 (9 ratings) — better
Positive reviews0.0% of reviews66.7% of reviews — better
Number of ratings23 — better9
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size25 MB31 MB
Age rating17+4+
DeveloperCooper Bussmann, LLCLeviton Manufacturing Co. Inc.

Customer experience

Fault Current Calculator

All ratings23 ratings
Positive47.8%
Neutral8.7%
Negative43.5%
Written reviews10 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

Leviton Smart Sensor

All ratings9 ratings
Positive66.7%
Neutral11.1%
Negative22.2%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

2 purchases

Fault Current Calculator

Subscriptions2
  • Pro Monthly Subscription7 Days trial$4.991 Month
  • Pro Annual Subscription7 Days trial$39.991 Year
None

Leviton Smart Sensor

No in-app purchases

Questions

Is Fault Current Calculator free?
Fault Current Calculator is free to download, with in-app purchases available.
Is Leviton Smart Sensor free?
Leviton Smart Sensor is free to download, with no in-app purchases.
Which has better reviews, Fault Current Calculator or Leviton Smart Sensor?
Leviton Smart Sensor is rated higher. Fault Current Calculator averages 3.1 out of 5 from 23 ratings, while Leviton Smart Sensor averages 3.9 from 9 ratings.
Do Fault Current Calculator or Leviton Smart Sensor have ads?
Neither Fault Current Calculator nor Leviton Smart Sensor shows ads.
Which is updated more often, Fault Current Calculator or Leviton Smart Sensor?
Fault Current Calculator ships an update every 4 months, and Leviton Smart Sensor every 5 months. Most recently, Fault Current Calculator was updated on August 20, 2026 and Leviton Smart Sensor on September 11, 2026.

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