Effective date: November 11, 2026
Developer: Digital NEXUS (digitalnexus.studio)
Package: com.arcguard.nexus
ArcGuard stores everything you enter only on your phone. Digital NEXUS does not collect, receive, sell, or share any of your data. The app has no account, no ads, no analytics, and no in-app purchases.
The app keeps your local electrical panel inputs (system voltage, bolted fault current, clearing times, enclosure dimensions, working distance, grounding configuration, and worksheet notes) in private local storage on your device. No data is transmitted to external servers.
The app requests zero runtime device permissions (no camera, microphone, location, contacts, or file-system access). The Android manifest declares zero network (INTERNET / ACCESS_NETWORK_STATE) permissions and the app makes zero outbound network requests.
ArcGuard operates 100% offline. All assets, IEEE Std 1584-2002 empirical formulas, and NFPA 70E reference tables are bundled inside the app with zero external CDNs or telemetry.
ArcGuard is completely free and includes no Google Play Billing library, subscriptions, or paid unlocks.
If you choose Print Worksheet or Share Text Summary, your generated worksheet goes only to the Android print service or sharing app you select.
You can clear saved inputs inside the app, clear app storage in Android settings, or uninstall ArcGuard to delete all stored records from your phone.
ArcGuard is an independent electrical safety estimator by Digital NEXUS. It is not affiliated with, endorsed by, or a substitute for IEEE Std 1584, NFPA 70E, or a Licensed Professional Engineer (PE) short-circuit and arc flash study.
Digital NEXUS, [email protected], digitalnexus.studio