| Core Identity |
| Developer | AkzoNobel | Blue Ketchep | Antonio Lagana | Informed Publishing | SkyCiv | Alessandro Salvioni | Andy Arevalo |
| Category | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity | Productivity |
| Platform | Android | iOS, Android | iOS | iOS, Android | iOS, Android | iOS | iOS, Android |
| Store Metrics |
| Rating | 0.0 / 5 | 4.4 / 5 | 4.8 / 5 | 4.4 / 5 | 4.7 / 5 | 0.0 / 5 | 0.0 / 5 |
| Ratings Count | 0 | 45 | 103 | 1,449 | 35 | 0 | 0 |
| Price | Free | $0.99 | $24.99 | $12.99 | Free | $2.99 | $0.99 |
| Release Date | Apr 22, 2022 | May 30, 2015 | Feb 1, 2019 | Dec 9, 2016 | May 28, 2020 | Apr 20, 2026 | Nov 23, 2025 |
| Last Updated | Apr 9, 2026 | Feb 22, 2024 | Jan 28, 2026 | Apr 2, 2026 | Jul 13, 2022 | Apr 20, 2026 | Nov 23, 2025 |
| Sentiment & Reviews |
| Sentiment | - | terrible | - | mixed | mixed | - | - |
| Score | - | 10/100 | - | 35/100 | 55/100 | - | - |
| Praises | - | - | - | - Comprehensive electrical reference material provides essential field support for journeyman and apprentice electricians
| - Engineering calculators provide high utility for field work and quick design checks
| - | - |
| Complaints | - | - Clumsy user interface design makes navigating core application functions difficult for daily users
- Limited feature set fails to provide sufficient value for the purchase price
| - | - Aggressive review solicitation interrupts professional workflow and creates significant user frustration
| - Mandatory account registration and invasive permission requests create significant friction for new users
| - | - |
| Requests | - | - | - | - Zoomable page functionality would improve readability for users with visual impairments
| - Expanded payment options including regional digital wallets to improve accessibility for international users
| - | - |
| Strategic Intel |
| Strengths | - Proprietary technical data integration provides a B2B distribution barrier for authorized partners
- ChemCraft calculator utility creates a daily-use case for industrial coating distributors
| - Interactive load-dragging interface reduces time-to-result for structural setups
- Permalink export enables viral design sharing among professional teams
| - | - Official NEC content licensing creates a high-trust barrier against non-specialized reference apps.
- Offline-first architecture ensures utility in remote job sites where connectivity is unreliable.
- Volume purchase program provides a B2B distribution channel into electrical contracting firms.
| - Cloud-integrated continuity between mobile and desktop structural models
- Multi-code design compliance library for global engineering standards
- Specialized FEA-integrated modules for base plate and retaining wall design
| - | - |
| Weaknesses | - Static documentation lacks the interactive, multi-window workflow found in modern productivity tools
- Zero public rating count limits social proof and new-user trust
| - Premium tier lacks perceived value due to interface clumsiness
- 0-rating on Android indicates lack of platform-specific optimization
| - | - Aggressive review prompts surfacing on every launch drive negative sentiment and churn.
- Search functionality requires exact terminology, limiting usability for non-expert users.
- Technical regressions in the latest update broke video playback and removed critical tables.
| - Mandatory registration wall before feature access
- High subscription cost relative to regional tutoring rates
- Technical instability and login failures post-update
| - | - |
| Pricing | free | paid | paid | paid | freemium | paid | paid |
| Momentum | Maintenance | Zombie | Steady | Maintenance | Zombie | - | - |
| Update Cadence | 1 versions | 5 versions | 5 versions | 3 versions, 2 majors/6mo, ~44d avg | 2 versions, 1 majors/6mo, ~412d avg | - | - |
