With Contacts Sync, you can quickly & easily sync your Google or Outlook contacts with iPhone, giving you access to your contacts wherever you go. This app distinguishes itself with its reliability, ease of use, speed, and with a true “2-way sync” that merges changes made to either account. This is the #1 app for syncing contacts both in terms of downloads & reviews.

Also of significance, this app syncs your Google labels or Outlook categories with your iPhone lists. For instance, you may have organized your Google contacts into groups such as “friends,” “family,” and “coworkers.” After a sync, your iPhone and Google groups will match. With your groups configured on iPhone, you can easily send group emails or group messages.

SYNC THE FOLLOWING ACCOUNTS:
• Sync Google with iPhone
• Sync Outlook with iPhone
• Sync 2 Google accounts

SYNC ANY IPHONE ACCOUNT:
• Choose to sync all of your iPhone contacts, or choose to sync contacts from a specific iPhone account, such as iCloud, a local iPhone address book, Outlook, or a CardDAV account

SYNC TYPES:
• Choose from one of the following sync types: 2-Way Sync, 1-Way Sync, and Manual Sync
• Choose a 2-Way Sync to sync changes in both directions
• Choose a 1-Way Sync to transfer changes in one direction only
• Choose a Manual Sync to sync specific contacts only

SYNCS ALL FIELDS:
• Syncs all fields including names, phonetic names, nicknames, email addresses, phone numbers, postal addresses, company names, job titles, departments, birthdays, anniversaries, events, notes, web page addresses, relationships, instant messaging accounts, & social profiles
• Syncs contact photos
• Syncs custom labels & custom fields

INITIAL SYNC:
• During the initial sync, the contents of matching contacts will be merged

CONFIRM CHANGES BEFORE SYNCING:
• Review each change before the sync actually begins

AUTOMATIC SYNC:
• Automatically syncs contacts in the background 24/7

APPLY FILTERS INCLUDING GROUP FILTER:
• Apply the group filter, new contact filter, and more!

DUPLICATE CONTACTS:
• Eliminate duplicate contacts in Google directly from the app, and then sync to remove the same duplicates from iPhone