UtilHub UK vs BuildWire Calc

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

UtilHub UK compared with BuildWire Calc
Detail	UtilHub UK	BuildWire Calc
What it does	The useful corner of the internet	Offline calculators for electricians, builders and HVAC technicians
Stage	Not given	Not given
Founded	Not given	Not given
Based in	GB	US
Pricing model	Freemium	Freemium
Pricing	Free: 3 public tool runs per 24 hours as guest, 10 runs with free account. Premium: £9 per month for unlimited access to all 123 public tools and 20 Premium workflows. Business Starter: £99 per month including everything in Premium plus one hosted custom business tool and one small monthly update. B	Free: 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).
Key features	VAT calculator Mortgage affordability calculator Word counter Image compressor and resizer Date difference calculator Strong password generator Unit converter CSV to JSON converter ROI calculator Meta tag generator	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
What makes it different	All calculations run locally in the browser with no data transfer UK-focused defaults with editable assumptions Transparent methodology with visible formulas and sense-check results Quality checked before release including boundary values and mobile layouts Free public tools with optional Premium and Business plans	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
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	15	13
Referring domains (Majestic)	3	1

6 details filled in for both companies.

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