TruePhase
Utilities
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
TruePhase Pro is now a one-time purchase — buy once, unlock forever. No subscription, nothing recurring.
Look up the wire color and circuit phase for any panel slot in seconds. TruePhase is a fast, local-first field reference built for electricians, journeymen, and apprentices.
Type a circuit number and instantly see the common US phase color, voltage system, panel position, neutral, ground, and field-convention note. Lookup for 120/240 single-phase is free.
TruePhase Pro unlocks the 120/240 high-leg delta, 120/208, and 277/480 three-phase systems, plus saved panels with editable per-circuit load descriptions, 2-pole and 3-pole breaker labeling, auto-saved company contact info, and a printable panel schedule you can save as a PDF and post on the panel. Pro also adds project presets, custom phase colors, custom left/right starts with row step, panel notes, lookup-result copy/share, saved-panel share, and CSV export.
Designed for quick use:
- Large circuit keypad and instant phase/color result
- Common odd/even two-column panel position
- Wire-list browse view
- Light and dark mode
- Visible system switching with color swatches plus text labels
- Saved panels with load descriptions and 2-pole/3-pole breaker grouping (Pro)
- Printable, PDF-ready panel schedule with your company info (Pro)
- Lookup-result copy/share, saved-panel share, and CSV export (Pro)
- Local-first settings; no account or sign-in required
TruePhase is a field-convention lookup tool. Always verify project standards, labeling, jurisdiction, and site practice before pulling wire.
TruePhase Pro Subscription:
- TruePhase Pro Monthly: $0.99/month
- TruePhase Pro Yearly: $4.99/year
Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple ID account settings.
Privacy Policy: https://phase.509electric.com/privacy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
TruePhase Pro is now a one-time purchase — buy once and unlock every Pro feature forever. No subscription, nothing recurring.
The developer, Nicole Nalley, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nicole Nalley
- Size
- 2.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- TruePhase Pro $0.99
- TruePhase Pro Unlock $4.99
- TruePhase Pro $4.99
- Copyright
- © 2026 509 Electric LLC