Comparison

IDF Manufacturing vs VoltForge

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

Head to head
About

IDF Manufacturing

Features
Read full description

Trace the whole manufacturing process of a product

About

VoltForge

This app provides electricians with essential field calculators, up-to-date code references, and a job estimator. It offers tools for Ohm's Law, voltage drop, conduit bending, and wire ampacity, all accessible offline. Pro features are available as a one-time purchase.

Highlights
  • Ohm's Law & Voltage Drop Calculator
  • Fraction & Wire Ampacity Tables
  • Conduit Bending & Fill Calculators
  • Wire Pull Tension Calculator
  • NEC 2023 Quick Reference
  • Job Estimator with PDF Export
Features
Read full description

Built for the field, not the classroom. VoltForge puts precision calculators, NEC 2023 code references, and a professional job estimator in your pocket. Built for journeymen, master electricians, and apprentices who need fast, accurate answers on the job site. Launch pad home screen. Light and dark mode. Large tap targets. Fully offline. No ads. No subscriptions. FREE TOOLS OHM'S LAW & VOLTAGE DROP Solve for any value from any two inputs. Voltage drop supports 1-phase and 3-phase, copper and aluminum, 14 AWG to 500 kcmil, 120V to 600V. Auto-suggests correct wire size when over NEC 3% limit. Includes 3-phase kVA, kW, kVAR, and HP calculator. FRACTION CALCULATOR Tap-style keyboard with denominators from halves to 64ths. Add, subtract, multiply, and divide. Displays fraction and decimal simultaneously. WIRE AMPACITY TABLE NEC Table 310.15(B) for copper and aluminum, 14 AWG through 1000 kcmil. Includes derating calculator for conductor count and temperature correction table. PRO TOOLS - One-time $4.99, yours forever CONDUIT BENDING CALCULATOR All six bend types: 90 Stub, Back-to-Back, Offset, 3-Point Saddle, 4-Point Saddle, Rolling Offset. Enter measurements in feet and inches. Marks display in feet and fractions to the nearest 1/8". EMT 1/2" through 4". CONDUIT FILL CALCULATOR EMT, IMC, RMC, PVC 40/80, HDPE, LFMC up to 4". THHN/THWN, XHHW, RHH/RHW-2, THW/THHW up to 1000 kcmil. Shows fill %, jam ratio per NEC Ch.9, and ampacity derating warning for 4+ conductors. WIRE PULL TENSION CALCULATOR Build your pull route segment by segment. Calculates cumulative tension through straights and bends. Flags sidewall pressure violations. Pass/fail result with remedies when over limit. TRANSFORMER WIRING DIAGRAMS 7 configurations with schematic diagrams and field notes: 1-Phase 120/240V, 1-Phase 480V Step-Down, Delta-Wye, Wye-Delta, Delta-Delta, Wye-Wye, and Open Delta. Terminal reference and NEC field notes for each. NEC QUICK REFERENCE 20 searchable NEC 2023 sections: Working Clearances, Box Fill, GFCI, AFCI, Breaker Sizing, Feeder Sizing, Grounding, Service Entrance, Conduit Fill, Load Calculations, Motor Calculations, Panelboard Rules, Transformers, Torque Specs, and more. JOB ESTIMATOR + PDF EXPORT Material list with markup, labor, permit fee, and tax. Generates a professional PDF with company info, customer details, scope of work, line items, and signature blocks. Share via email, AirDrop, or any iOS share sheet. WHY VOLTFORGE - NEC 2023 - current code, not years-old data - Light and dark mode - tap to switch on the home screen - Fully offline - works anywhere, no signal needed - Fraction and feet/inches input - built for how electricians measure - No ads, no subscription - Pro is one purchase, forever - Large tap targets for gloved hands All calculations are for planning purposes. Always verify with your local AHJ.

Screenshots

IDF Manufacturing3 screens
VoltForge4 screens

Verdict

The call

The clearest difference is in-app purchases: IDF Manufacturing at none against VoltForge's 1. IDF Manufacturing also leads on iOS requirement (12.0 vs 15.1). VoltForge's advantage is update cadence (every 3 weeks vs every 26 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. VoltForge sells 1 one-off in-app purchase. IDF Manufacturing asks for nothing beyond the download.

UpkeepUpdate frequency

IDF Manufacturing ships an update every 26 months, VoltForge every 3 weeks. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.

Scorecard3 real differences · 6 level
IDF Manufacturing versus VoltForge: the parameters behind the verdict, then further details
ParameterIDF ManufacturingVoltForge
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 26 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size23 MB47 MB
Age rating4+4+
DeveloperThe ID FactoryClark Allen

In-app purchases

None

IDF Manufacturing

No in-app purchases

1 purchases

VoltForge

One-time1
  • VoltForge Pro$4.99

Questions

Is IDF Manufacturing free?
IDF Manufacturing is free to download, with no in-app purchases.
Is VoltForge free?
VoltForge is free to download, with in-app purchases available.
Do IDF Manufacturing or VoltForge have ads?
Neither IDF Manufacturing nor VoltForge shows ads.
Which is updated more often, IDF Manufacturing or VoltForge?
IDF Manufacturing ships an update every 26 months, and VoltForge every 3 weeks. Most recently, IDF Manufacturing was updated on October 27, 2026 and VoltForge on October 22, 2026.

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