Comparison

MApp™ vs Kopperfield

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

Head to head
About

MApp™

This utility app connects to specific Bluetooth-enabled multi-meters, allowing users to safely record, graph, and document electrical measurements from a distance. It enables the creation of customized reports with notes, pictures, and GPS locations, which can then be emailed.

Highlights
  • Bluetooth connectivity with multi-meters
  • Remote measurement recording
  • Data graphing and analysis
  • Customizable reports with notes and pictures
  • GPS location tagging
  • Email report generation
Features
Read full description

Southwire’s new MApp™ mobile app works with our new Bluetooth® enabled 15190T MaintenancePRO™ multi-meter and 23090T MaintenancePRO™ clamp meter. This system is like having an electrician’s helper with you at all times. Not only does the app allow you to safely stand back from hazardous situations like arc flash, it also provides you with one of the most powerful documentation tools you will ever need. The app lets you record and graph measured values, set high or low alarms, attach notes, pictures, and even a GPS location to your measurements. You can choose to use any combination of these features to customize a complete report about your job and email it back to the office with the press of a button.

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

MApp™4 screens
Kopperfield4 screens

Verdict

The call

The clearest difference is review sentiment: MApp™ at 50% against Kopperfield's 0%. MApp™ also leads on monetization model (free vs ad-supported). Kopperfield's advantage is update cadence (every 3 weeks vs every 56 months) and rating (3.9 vs 3.5). On price, ratings volume, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

Kopperfield holds the better App Store score, 3.9 against 3.5. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews complicate that: 50% of MApp™'s written reviews are positive against 0% of Kopperfield's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MApp™ ships an update every 56 months, Kopperfield every 3 weeks. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.

Scorecard4 real differences · 6 level
MApp™ versus Kopperfield: the parameters behind the verdict, then further details
ParameterMApp™Kopperfield
PriceFreeFree
Rating3.5 (6 ratings)3.9 (9 ratings) — better
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings69 — better
Update frequencyEvery 56 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.1 — better
Further details — not scored
Size10 MB45 MB
Age rating4+4+
DeveloperSouthwire CompanyKopperfield

Customer experience

MApp™

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Kopperfield

All ratings9 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

MApp™

No in-app purchases

None

Kopperfield

No in-app purchases

Questions

Is MApp™ free?
MApp™ is free to download, with no in-app purchases.
Is Kopperfield free?
Kopperfield is free to download, with no in-app purchases.
Which has better reviews, MApp™ or Kopperfield?
Kopperfield is rated higher. MApp™ averages 3.5 out of 5 from 6 ratings, while Kopperfield averages 3.9 from 9 ratings.
Do MApp™ or Kopperfield have ads?
Neither MApp™ nor Kopperfield shows ads.
Which is updated more often, MApp™ or Kopperfield?
MApp™ ships an update every 56 months, and Kopperfield every 3 weeks. Most recently, MApp™ was updated on September 10, 2026 and Kopperfield on September 16, 2026.

Other comparisons