Support

Contact

Email nz.jiangzq@gmail.com for help with WireSize. Include the app version, iOS version, the calculator or screen and the steps that led to the issue. A screenshot may help; remove private job or client details first. Do not send a password or payment card number.

Purchases and restore

Use Restore Purchases in the app’s Settings if an existing purchase is missing. For a subscription, use Apple’s subscription management instructions. For a refund request, use Apple’s Report a Problem. Purchases and eligibility are tied to the Apple Account used with Apple.

About calculations

WireSize uses NEC oriented reference data and calculation assumptions. Verify the selected edition, conductor conditions, local amendments and final installation with a licensed professional and the authority having jurisdiction.

Common questions

Are the results valid outside the United States?

The app uses NEC oriented references. Check the rules applicable at your site; it does not establish compliance in another jurisdiction.

Does it design an electrical installation?

No. Results are calculation aids and need professional review of site conditions and code requirements.

Does it need internet?

Calculations run on the device; Apple purchase and restore services can need a connection.

Privacy

Read the Privacy Policy for details about WireSize data and Apple services.