# MApp™ vs Kopperfield

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.

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

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.

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.

## The numbers

| Metric | MApp™ | Kopperfield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (6 ratings)](https://appshunter.io/ios/app/mapp/id1038053728/reviews) | **[3.9 (9 ratings)](https://appshunter.io/ios/app/kopperfield/id6736772332/reviews)** |
| Number of ratings | 6 | **9** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 45 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [Kopperfield](https://appshunter.io/developer/1756157251) |

## What reviewers say

### MApp™

[App page](https://appshunter.io/ios/app/mapp/id1038053728)

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:** macOS Compatibility

**In-app purchases:** none


### Kopperfield

[App page](https://appshunter.io/ios/app/kopperfield/id6736772332)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

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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.*