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BuildWire Calc vs UltraCalcPal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

BuildWire Calc compared with UltraCalcPal
DetailBuildWire Calc logo BuildWire CalcUltraCalcPal logo UltraCalcPal
What it doesOffline calculators for electricians, builders and HVAC technicians Ultra-marathon nutrition calculator for race-day fuelling
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Freemium
PricingFree: nine calculators (voltage drop, Ohm's law, watts to amps, concrete slab, roof pitch, board feet, BTU, CFM, BTU to kW), no time limit. Pro: $9.99 per year or $19.99 lifetime (one payment, no renewal). Free account with demo calculator and one saved plan. Pro is €13 EUR once per plan for aid-station planner, race-day forecast, sharing, PDF, race-week reminder and learning from past race.
Key features
  • Wire sizing and voltage drop calculations
  • Conduit fill and box fill calculations
  • Offline operation with no network required
  • Transparent calculation steps and NEC warnings
  • Job organization and PDF/CSV export
  • Motor and generator sizing calculators
  • Power and conversion calculators
  • Building calculations for concrete and roof pitch
  • No ads and no account required
  • Private with data staying on device
  • Carbohydrate, fluid and sodium calculations per hour based on weight, effort and weather
  • Fuel ideas in gels, chews, drink mix or real food with mixed strategy options
  • Aid-station planner with up to 60 stations and drop-bag lists
  • GPX file import for race route and waypoints
  • Race-day forecast with heat-index adjustments
  • Hour-by-hour race plan table with night-race adjustments
  • Shareable private links to share plans with crew
  • Printable PDF of the complete race plan
  • Race-week reminder by push or email with key numbers
  • Post-race review to learn from past races
What makes it different
  • Works completely offline with no network or cellular signal required
  • Private by design with no account, no ads, and calculations never leaving your device
  • Shows exact NEC formulas and calculation steps so you can verify results before fieldwork
  • Over 35 specialized calculators covering electrical, building and HVAC trades
  • Tested code with automated tests against independently worked examples
  • Demo calculator requires no account and sends nothing to the browser
  • One-time €13 EUR payment per plan with no subscription
  • Personalised calculations based on published sports-nutrition ranges scaled to your weight and conditions
  • Plans are private by default with revocable sharing links
  • No ad trackers and ability to delete all personal data
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)130
Referring domains (Majestic)10

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