Kopperfield vs Panelos Electrician Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Load calculator with NEC standards
- Single line diagram tool
- Panel schedule creation
- NEC chatbot
- Instant PDF report generation
- AI panel photo processing
- Team dashboard
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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
Panelos Electrician Tools
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Panelos is an offline panel schedule, breaker directory, load balance, and handoff workbench for electricians. Build and edit a panel schedule, label breakers, review connected and adjusted load, check A/B leg balance, capture field evidence, and preview PDF or label packets before using a clean export credit. Panelos keeps the calculation and handoff trail visible instead of hiding the result in a black box. Built for panel-to-handoff work: - Create and edit panel schedules on iPhone and iPad. - Add breaker labels, rooms, notes, amps, poles, VA, and continuous-load state. - Review connected load, adjusted load, capacity, panel ratio, and A/B leg balance. - Keep circuit edit history with before/after values and reasons. - Capture field readings and photo evidence with local hashes. - Preview customer or AHJ packet drafts and panel + wire label packets. - Share watermarked previews for free. - Use clean export credits for watermark-free reports and labels. - Run voltage-drop calculations offline with visible inputs, steps, warnings, and references. - Save reusable panel templates for repeated jobs. Panelos stores the active workflow locally and does not require an account or cloud sync. The iPad layout adds a native sidebar and a wider centered workbench for repeated field and desk review. Panelos is not a replacement for licensed code books, engineering judgment, professional review, or AHJ approval. It does not reproduce NEC text or claim official compliance. Confirm the adopted edition, local amendments, field conditions, and final method before use. Start with a panel. Add circuits. Capture proof. Preview the packet. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Kopperfield at none against Panelos Electrician Tools's 1. Kopperfield also leads on iOS requirement (15.1 vs 17.0). Panelos Electrician Tools's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads 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
Both are free to download. Panelos Electrician Tools sells 1 one-off in-app purchase. Kopperfield asks for nothing beyond the download.
Kopperfield ships an update every 3 weeks, Panelos Electrician Tools every 10 days. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.
| Parameter | Kopperfield | Panelos Electrician Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (9 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 45 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Kopperfield | Dmitriy Motorin |
In-app purchases
Kopperfield
No in-app purchases
Panelos Electrician Tools
- 5 Clean Exports$9.99
Questions
Is Kopperfield free?
Is Panelos Electrician Tools free?
Do Kopperfield or Panelos Electrician Tools have ads?
Which is updated more often, Kopperfield or Panelos Electrician Tools?
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