Comparison

Circuit Navigator vs Kopperfield

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

Head to head
About

Circuit Navigator

Read full description

​Revolutionize your electrical testing with our Navi tester and Circuit Navigator app. Get real-time insights into wiring issues and pinpoint problems with precision. See instant feedback in our app to voltage, light and vibration changes! Our app lets you organize and track test results by named outlet, saving you time and hassle. Easily map electrical breakers to their corresponding circuits for even more efficient troubleshooting. Plus, create comprehensive site reports automatically to document your findings and share with clients. ​ Validate existing breaker panel labeling, discover errors and correct incomplete mapping. Wireless operation means one person can map outlets throughout the facility. Detect and identify common wiring problems: Open Ground - Open Neutral - Open Hot - Hot/Neutral Reversed Additional test features: GFCI triggering, works remotely. Built-in Light Sensor to map breakers to light fixture and refrigerators. Built-in Vibration Sensor to map breakers to anything with a motor: AC Units, Pumps, Fans. Create Detailed Site reports to keep a record of your test results and wiring map.

About

Kopperfield

Streamline electrical design and permitting with powerful tools for load calculations, panel schedules, and single-line diagrams. Quickly reference the National Electrical Code with an AI-powered chatbot and generate instant PDF reports for inspectors and clients.

Highlights
  • Load calculator with NEC standards
  • Single line diagram tool
  • Panel schedule creation
  • NEC chatbot
  • Instant PDF report generation
  • AI panel photo processing
  • Team dashboard
Features
Read full description

Save time and money. Get ready for permits and projects with faster and easier design tools from Kopperfield, including load calcs, line diagrams, panel schedules, and more. Once logged into your Kopperfield account, you'll enjoy our: * Load calculator: Easy-to-use interface pre-loaded with common appliances and their standard output values from the National Electrical Code. Add information on the property and your calculation will automatically update. Supports both commercial and residential calculations, as well as the Standard (NEC Article 220 Part III), Optional (NEC Article 220 Part IV), and 2026 Standard (NEC Article 120 Part III) methods. * Single line diagram tool: Contains dozens of common templates and electrical symbols to make it easy to generate new diagrams and share them with your team. View diagrams from any device and create new templates on tablet or desktop for your whole team to use. * Panel schedules: Includes tools to complete panel schedules and create labels for electrical panels. Drag-and-drop interface makes it easy to arrange and customize circuits for both split-phase and three-phase projects. * NEC chatbot: Custom chatbot with advanced search capabilities to quickly reference specific sections of the 2017, 2020, or 2023 National Electrical Code. Includes the following features: * Fast PDF outputs: instantly generate a downloadable, one-page PDF report of your load calc, line diagram, or panel schedule to share with inspectors and customers * Smart property data: enter the property address and we’ll pull in the square footage for any customer project or electrical load calculation * AI panel photo processing: upload a photo of an electrical panel to automatically add items to your load calculation or panel schedule * Team dashboard: store your team's projects and documents in one place for easier management, access, and review *Single and three phase options: use a variety of nominal voltages for residential and commercial building types, including: 120/240V, 120/208V, 120/240V, 208Y/120V 3Ø, 240V 3Ø Delta, 240V 3Ø Hi-leg Delta, 347V 3Ø Delta, 480Y/277V 3Ø, 480V 3Ø Delta, 600Y/347Y 3Ø, 600V 3Ø Delta. * Standard scenarios: generate load calcs for scenarios including single family homes (standard and optional methods), multi dwelling units (i.e., duplex, triplex, quad), 120/208v (three-phase power) dwellings, accessory dwelling units and additions, commercial occupancy types, and heat pumps * Common appliance defaults: choose from a pre-loaded list of common appliances and standard output values that you can adjust for every load calculation * EV charger inputs: include EV charger values to any load calculation, essential for modern homes

Screenshots

Circuit Navigator3 screens
Kopperfield4 screens

Verdict

The call

The clearest difference is update cadence: Kopperfield at every 3 weeks against Circuit Navigator's every 5 months. Circuit Navigator's advantage is iOS requirement (13.0 vs 15.1). On price, ads, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Circuit Navigator ships an update every 5 months, Kopperfield every 3 weeks. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
Circuit Navigator versus Kopperfield: the parameters behind the verdict, then further details
ParameterCircuit NavigatorKopperfield
PriceFreeFree
Rating—3.9 (9 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size24 MB45 MB
Age rating4+4+
DeveloperPersistent Engineering LLCKopperfield

In-app purchases

None

Circuit Navigator

No in-app purchases

None

Kopperfield

No in-app purchases

Questions

Is Circuit Navigator free?
Circuit Navigator is free to download, with no in-app purchases.
Is Kopperfield free?
Kopperfield is free to download, with no in-app purchases.
Do Circuit Navigator or Kopperfield have ads?
Neither Circuit Navigator nor Kopperfield shows ads.
Which is updated more often, Circuit Navigator or Kopperfield?
Circuit Navigator ships an update every 5 months, and Kopperfield every 3 weeks. Most recently, Circuit Navigator was updated on October 9, 2026 and Kopperfield on October 3, 2026.

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