Phone Number Cleaner

Phone Number Cleaner corrects and standardizes every number in your address book in seconds — 100% privately, on your device. It rewrites your contacts to the international E.164 format (+XX…), so they work with WhatsApp, Signal, Telegram and operators worldwide. Nothing ever leaves your iPhone or your Mac. No cloud, no servers, no data collection, no account. WHAT IT DOES • Fixes numbers written locally, or with 00, 011 and 0011 prefixes, spaces, dots or dashes • Adds the right country code automatically • Works on your whole address book, or on a single group • Flags the numbers it could not read, so you can check them yourself • Undo: one tap puts every number back the way it was NEW IN VERSION 3 • A screen that shows what will happen before you start • Live progress you can stop at any moment • A result screen that says exactly what changed, contact by contact • Open a contact's card without leaving the app A simple, reliable tool that keeps your address book clean — privately.