iOS App
ContactFixer finds every US phone number missing the +1 country code and fixes them all in one tap — privately, on your device.
Features
Instantly finds every US number missing the +1 prefix across your entire contacts list.
See every change before it's made — names, old numbers, and new numbers side by side.
Numbers already starting with + are never touched. Your international contacts stay intact.
No servers, no accounts, no analytics. Your contacts never leave your device.
Review the list, tap Apply — done. No fiddling with exports or third-party services.
How it works
Tap Scan Contacts and allow access when prompted. Standard iOS permissions — you're in control.
ContactFixer shows you every number it plans to update. Scroll through and verify before committing.
One tap updates all contacts instantly via the native iOS Contacts framework.
What gets fixed
Your data stays on your device. ContactFixer has no backend, no account system, and makes no network requests. It reads and writes your contacts using Apple's native Contacts framework — the same way the built-in Contacts app does.