Last updated: September 2026
Important: NEC Field Calc is a fully on-device app
NEC Field Calc is an offline field calculator for electricians. It has no backend server. We do not collect, log, store, or transmit your personal information, calculation inputs, or history. All data stays on your device. In-app purchases are processed by Apple through the App Store; we do not receive your payment card details.
NEC Field Calc (“we,” “us,” “our,” or “the App”) respects your privacy. The App runs entirely on your device, has no backend server, and does not collect, log, or transmit your data. By using NEC Field Calc, you agree to this Privacy Policy.
NEC Field Calc is fully local and has no backend server. We do not collect, record, store, or transmit personal information or usage data.
NEC Field Calc does not collect:
Preferences (language, appearance), Pro unlock status, and calculation history are stored only on your device. They are not uploaded to any server we operate. We cannot access that data.
NEC Field Calc needs an internet connection only for:
All calculators work offline. Apart from App Store purchase and restore flows, the App does not require network access.
History and settings remain on your device. We operate no user-data server, so your calculation data is never uploaded to us. Uninstalling the App removes local App data according to iOS behavior.
NEC Field Calc uses Apple services only for:
Those services are governed by Apple’s privacy policy and terms. We do not receive your full payment card information from Apple.
NEC Field Calc does not use third-party analytics or advertising services. We do not track your usage for marketing profiles.
Because we do not collect user data, there is nothing for us to share or disclose. Local history and settings stay under your control on the device.
NEC Field Calc is not directed at children under 13. Because we do not collect personal information, we do not knowingly collect children’s data.
We may update this Privacy Policy from time to time. Material changes may be reflected by updating this page and/or the App version. Continued use of NEC Field Calc after an update means you accept the revised policy.
If you have questions about this Privacy Policy, contact us at:
Email: piaochensuifeng@gmail.com
For App Store Connect, NEC Field Calc is intended to be declared as Data Not Collected for privacy nutrition labels, consistent with this policy: no account, no analytics SDK, no server-side user database.
This Privacy Policy is governed by the laws of the People’s Republic of China. Disputes should first be resolved through friendly consultation; if consultation fails, they may be submitted to a court of competent jurisdiction.