Comparison

Wire Size Calc vs Micboard Spectrum

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

Head to head
About

Wire Size Calc

Calculate the correct wire gauge for electrical circuits using official NEC ampacity tables and derating factors. Supports various load types, conductor materials, insulation, and installation methods. Works entirely offline for on-site use.

Highlights
  • NEC ampacity tables and derating factors
  • Continuous and non-continuous load sizing
  • Copper and aluminum conductor support
  • Multiple insulation types
  • Conduit and free air installation
  • Offline functionality
  • Voltage drop check
Features
Read full description

NEC wire size calculator for electricians, apprentices, and electrical engineers. Determine the correct wire gauge (AWG/kcmil) for any circuit using official NEC 2023 ampacity tables and derating factors. Supports continuous and non-continuous loads, copper and aluminum conductors, 6 insulation types, and both conduit and free air installations. No internet required - works 100% offline on the job site. FEATURES: - Continuous and non-continuous load sizing (125% factor) - 5 voltage presets: 120V, 208V, 240V, 277V, 480V - Single-phase and three-phase support - Copper and aluminum conductors: 14 AWG through 2000 kcmil - AWG and mm² (metric) display toggle - 6 insulation types: THHN, THW, TW, XHHW-2, NM-B, USE-2 - Conduit and free air installation methods - Temperature correction factor (NEC 310.15(B)(1)) - Conduit fill adjustment factor (NEC 310.15(C)(1)) - Termination rating check (60°C / 75°C per NEC 110.14(C)) - Overcurrent protection sizing (NEC 240.4(D)) - Optional voltage drop check when distance is provided - PASS/FAIL indicator for quick compliance check NEC REFERENCES: - Table 310.16 - Ampacity in conduit/raceway - Table 310.17 - Ampacity in free air - Table 310.15(B)(1) - Temperature correction factors - Table 310.15(C)(1) - Conduit fill adjustment factors - NEC 110.14(C) - Termination temperature limits - NEC 240.4(D) - Small conductor overcurrent protection PRO FEATURES (one-time purchase): - No ads - Save calculation history - Export calculations as PDF reports - Dark theme support BUILT FOR THE JOB SITE: This app is designed by electricians, for electricians. Enter your circuit parameters, get the recommended wire size instantly - no complicated menus or unnecessary features. One-hand operation, instant results. HOW IT WORKS: 1. Enter load current in amps 2. Select load type (continuous or non-continuous) 3. Choose voltage, phase, conductor material, insulation type 4. Set installation method and ambient temperature 5. Get recommended wire size with full derating breakdown The calculator automatically applies: - 125% continuous load factor - Temperature correction for ambient conditions - Conduit fill adjustment for conductor count - Termination temperature limit verification - Standard breaker size selection PERFECT FOR: - Licensed electricians - Electrical apprentices - Electrical engineers and designers - Electrical contractors - NEC code exam preparation - Journeyman and master electrician exams OFFLINE & PRIVACY: - Works 100% offline - no internet needed - No account required - No data collection - Your calculations stay on your device Simplify your wire sizing on the job site.

About

Micboard Spectrum

Features
Read full description

Micboard Spectrum turns an ADALM-Pluto into a pocket RF spectrum analyzer. Features: • Multi-Band Scanning: Automatically sweep across multiple bands. • Live spectrum trace and waterfall. • CSV Export Engine: Export scans, peak, and average scans from one or multiple bands. • Rolling scan storage: Scans are always stored, tag the ones you want to keep. Requires an ADALM-Pluto SDR running maia-sdr firmware. No hardware? Tap Demo Mode to explore with real recorded spectrum.

Screenshots

Wire Size Calc4 screens
Micboard Spectrum3 screens

Verdict

The call

The clearest difference is price: Micboard Spectrum at Free against Wire Size Calc's $0.99. Micboard Spectrum also leads on in-app purchases (none vs 1). Wire Size Calc's advantage is iOS requirement (13.0 vs 17.0). On 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

Micboard Spectrum is free to download; Wire Size Calc costs $0.99 up front. Wire Size Calc sells 1 one-off in-app purchase. Micboard Spectrum asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Wire Size Calc versus Micboard Spectrum: the parameters behind the verdict, then further details
ParameterWire Size CalcMicboard Spectrum
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size34 MB17 MB
Age rating17+4+
DeveloperRizvan AdzhoianKarl Swanson

In-app purchases

1 purchases

Wire Size Calc

One-time1
  • Pro Unlock$2.99
None

Micboard Spectrum

No in-app purchases

Questions

Is Wire Size Calc free?
Wire Size Calc costs $0.99, and also offers in-app purchases.
Is Micboard Spectrum free?
Micboard Spectrum is free to download, with no in-app purchases.
Do Wire Size Calc or Micboard Spectrum have ads?
Neither Wire Size Calc nor Micboard Spectrum shows ads.

Other comparisons