Email jackwallner+e@gmail.com. Include your iOS version and what you were doing when the problem happened, and you will get a real reply.
Tell us the exact question and what you believe the right answer is. Calculation answers are checked automatically against the reference tables on every build, but if something is wrong we want to know immediately, and a corrected build goes out fast.
Every answer uses the 2023 NEC. The app names that edition on every result screen, in Settings, and in your Exam Target, so you always know what you are checking against. Requirements vary by the edition your jurisdiction has adopted and by local amendments.
It focuses on code-book navigation, conductors and ampacity, worked calculations, and grounding with motors. Services, feeders, load calculations, wiring methods, and special occupancy chapters are not covered yet.
Settings → Restore Purchases. Make sure you are signed in with the same Apple Account you bought with.
Subscriptions are managed by Apple, not by us: iOS Settings → your name → Subscriptions. Cancelling there stops future renewals.
This app is a study aid, not a code book. It is not affiliated with, endorsed by, or connected to the NFPA. It teaches concepts and calculations in original wording and cites article numbers so you can verify each one in the code in force where you work.