Comparison

FieldVolt Electrical vs TruePhase

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FieldVolt Electrical

This app assists electricians with complex calculations for pipe bending, conduit fill, ampacity, voltage drop, and box fill. It also offers a professional subscription for expert electrical advice and troubleshooting.

Highlights
  • Pipe bending calculations (offsets, saddles)
  • Conduit fill calculations (NEC Table 1)
  • Ampacity and wire sizing
  • Voltage drop calculations
  • Box fill calculations (NEC 314.16)
  • Expert electrical advice subscription
Features
Read full description

Built by a licensed electrician for work in the field. PIPE BENDING Offsets, 3-bend saddles, 4-bend saddles, rolled offsets, back-to-back 90s, and parallel offsets. Mark placement calculated from the working end. Shrink, gain, spacing — all of it. CONDUIT FILL NEC Table 1 calculations for mixed wire fills. Add conductors, get fill percentage. AMPACITY Wire sizing and derating for ambient temperature, number of current-carrying conductors, and conduit type. VOLTAGE DROP Feeder and branch circuit voltage drop for single-phase and three-phase systems. BOX FILL NEC 314.16 calculations for device, conductor, clamp, and support fitting fill. FIELDVOLT PRO Ask electrical questions, get straight answers. Code interpretation, troubleshooting, load calc logic — the kind of thinking you'd get from someone who's been in the trade for 30 years. 5 free sessions included. Pro subscription available at $4.99/month or $50/year. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

TruePhase

Quickly find wire colors and circuit phases for electrical panels. Offers free basic lookups and a Pro subscription for advanced features like saved panels, custom labeling, and PDF export.

Highlights
  • Circuit number lookup
  • Wire color and phase identification
  • Saved panels with load descriptions
  • 2-pole and 3-pole breaker labeling
  • Printable PDF panel schedules
  • CSV export
Features
Read full description

Enter a circuit number to see its common US phase color, voltage system, panel position, neutral, ground, and field-convention note. Free lookup covers 120/240V single phase. A one-time TruePhase Pro purchase unlocks 120/240V high-leg delta, 120/208V, and 277/480V three-phase lookup, plus saved panels, project presets, custom phase colors and numbering, panel notes, load descriptions, 2-pole and 3-pole breaker labels, print-ready panel schedules, sharing, and CSV export. TruePhase is local-first and requires no account or sign-in. TruePhase is a field-convention reference, not a code-compliance guarantee or engineering design. Always verify field conditions, labeling, jurisdiction requirements, project standards, and site practice before pulling wire or energizing equipment.

Screenshots

FieldVolt Electrical4 screens
TruePhase4 screens

Verdict

The call

The clearest difference is iOS requirement: FieldVolt Electrical at 13.0 against TruePhase's 15.0. On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FieldVolt Electrical sells 2 in-app purchases, starting at $4.99 per month and TruePhase sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FieldVolt Electrical against 5.0 for TruePhase. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

FieldVolt Electrical ships an update every 2 months, TruePhase every 6 weeks. The most recent releases landed on September 27, 2026 and October 5, 2026 respectively.

Scorecard1 real difference · 8 level
FieldVolt Electrical versus TruePhase: the parameters behind the verdict, then further details
ParameterFieldVolt ElectricalTruePhase
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size66 MB2 MB
Age rating4+4+
DeveloperMATTHEW DAVID KOVALIKNicole Nalley

Customer experience

FieldVolt Electrical

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

TruePhase

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

FieldVolt Electrical

Subscriptions2
  • FieldVolt Pro$4.991 Month
  • FieldVolt Pro$49.991 Year
3 purchases

TruePhase

Subscriptions2
  • TruePhase Pro$0.991 Month
  • TruePhase Pro$4.991 Year
One-time1
  • TruePhase Pro Unlock$4.99

Questions

Is FieldVolt Electrical free?
FieldVolt Electrical is free to download, with in-app purchases available.
Is TruePhase free?
TruePhase is free to download, with in-app purchases available.
Which has better reviews, FieldVolt Electrical or TruePhase?
FieldVolt Electrical and TruePhase are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do FieldVolt Electrical or TruePhase have ads?
Neither FieldVolt Electrical nor TruePhase shows ads.
Which is updated more often, FieldVolt Electrical or TruePhase?
FieldVolt Electrical ships an update every 2 months, and TruePhase every 6 weeks. Most recently, FieldVolt Electrical was updated on September 27, 2026 and TruePhase on October 5, 2026.

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