BuildWire Calc Pricing: Free Tier and Pro
Last updated 2026-10-26
BuildWire Calc is free to download, has no ads and needs no account.
Free
Nine calculators, no time limit: voltage drop, Ohm’s law, watts to amps, concrete slab, roof pitch, board feet, BTU, CFM and BTU to kW.
Pro
Pro unlocks the other 27 calculators and PDF and CSV export of saved jobs. Choose one of two options:
| Option | Price (US) | How it works |
|---|---|---|
| Lifetime | $19.99 | One purchase, yours for good. |
| Yearly | $9.99 a year | Renews each year until you cancel. |
Prices shown are US prices. In other countries the store shows the price in your currency before you buy, and it can differ because of local taxes and exchange rates.
Buying, cancelling and restoring
Purchases are made inside the app and handled by the App Store or Google Play, so we never see your payment details. A yearly subscription renews until you cancel it in your Apple ID settings or in Google Play. You can restore a purchase at any time from Settings in the app, including on a new phone. For refunds, use the store’s own refund process; if something went wrong, write to support@buildwirecalc.com.
