Feature-by-Feature Comparison
An honest look at what each calculator app offers. Data gathered from public app store listings and product websites as of March 2026.
| Feature | SparkShift | ElectriCalc Pro | Calc Elite | Ugly's | Mike Holt |
|---|---|---|---|---|---|
| NEC 2026 Support | |||||
| CEC (Canada) Support | |||||
| Voltage Drop | Parallel + temp | ||||
| Wire Sizing | Auto-parallel | ||||
| Conduit Fill | 6 types | 12 types | |||
| Box Fill | 3D visual | ||||
| Dwelling Load | Std + Optional | ||||
| Commercial Load | |||||
| Motor Circuit | 1φ + 3φ + NEMA | 3φ only | |||
| Conduit Bending | 8 types + SVG | Video | |||
| Arc Flash (IEEE 1584) | |||||
| Short Circuit / AIC | |||||
| Transformer OCPD | |||||
| Pull Box Sizing | |||||
| Cable Tray Fill | |||||
| NEMA Reference | |||||
| Wire Color Codes | |||||
| 3D Visualizations | |||||
| PDF Export | |||||
| Field Mode | |||||
| Learning Mode | |||||
| Inspector Checklists | |||||
| Free Tier | $25+ | $7 | $10/yr | Free | |
| Total Calculators | 29+ | ~15 | ~12 | ~8 | ~8 |
| Exam Prep Integration |
Comparison data based on publicly available information from app store listings, product websites, and published documentation as of March 2026. Features and pricing may change. All trademarks belong to their respective owners.
Why Electricians Choose SparkShift
Six reasons SparkShift is the most complete electrical calculator on the market.
NEC 2026 Ready
SparkShift is the first calculator app updated for NEC 2026. Start using the latest code tables before anyone else adopts them.
3D Visualizations
Interactive 3D views for box fill, conduit bending, and panel layouts. See your calculations, not just numbers.
All-in-One Platform
29+ calculators in a single app. No switching between apps for voltage drop, conduit fill, and box fill.
Free Core Calculators
Wire sizing, conduit fill, box fill, and voltage drop are free forever. No trial period. No credit card required.
Works in US & Canada
Full NEC and CEC support. Switch between code systems in one tap. The only calculator built for North American electricians.
Built for the Field
Large touch targets, high-contrast field mode, and full offline support. Designed for gloved hands on the jobsite.
Built for Every Role in the Trade
Whether you are pulling your first wire or signing off on inspections, SparkShift has the tools you need.
For Apprentices
Learning mode walks you through every calculation step by step. Built-in exam tips explain the NEC article behind each result. Understand the code, not just the answer.
- Step-by-step explanations
- NEC article references
- Exam prep integration
- Learning mode
For Journeymen
Fast field calculations with saved presets for your common jobs. Mobile-optimized interface with large touch targets and field mode for bright sunlight.
- Saved calculation presets
- Field mode (high contrast)
- Offline capable
- Quick results
For Foremen
Generate PDF reports for each calculation. Share results with your crew and inspectors. Organize calculations by project for easy reference.
- PDF export
- Share with team
- Project organization
- Inspector-ready reports
For Master Electricians
Comprehensive calculations covering all NEC articles. Support for all code years and both NEC and CEC. The depth a master expects.
- All code years supported
- NEC + CEC
- Parallel conductor sizing
- Demand factor calculations
For Inspectors
Pass/fail checklists tied to specific NEC articles. Verify calculations on-site with code references. Print verification reports for your records.
- Pass/fail checklists
- Code reference lookup
- Print verification
- Article cross-references
For Engineers
Parallel conductor analysis, full demand calculations, arc flash studies, and professional PDF reports. Engineering-grade tools for design work.
- Parallel conductor analysis
- Arc flash (IEEE 1584)
- Demand calculations
- Professional PDF reports
Frequently Asked Questions
Common questions about SparkShift and how it compares.
Is SparkShift free?
Core calculators are free forever. Wire sizing, conduit fill, box fill, and voltage drop calculations are available at no cost with no trial period. Pro features like calculation history, PDF export, and project organization are available with a subscription.
Does SparkShift work in Canada?
Yes, all calculators support both NEC (United States) and CEC (Canadian Electrical Code) standards. You can switch between code systems with a single tap. SparkShift is the only calculator app built for electricians working across North America.
Is SparkShift accurate?
Calculations are based on published NEC 2023/2026 and CEC 2024 tables and formulas. Every result includes the specific NEC article reference so you can verify the method against the code book. All results should be independently verified before use in the field.
Can I use SparkShift for permit calculations?
SparkShift is a reference tool designed to assist licensed electricians. Calculations should be verified by a qualified professional before submission for permits. SparkShift provides NEC article references with every result so you can confirm the method used.