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ContactZapp

Sync your contacts between Google, Microsoft, Apple and CardDAV. Find and merge duplicates easily.

A contact management platform that syncs contacts across Google, Microsoft, Apple and CardDAV accounts, automatically detecting and merging duplicates.

Overview

Screenshot of the ContactZapp homepage

A look at contactz.app

ContactZapp keeps your contact list synchronized across multiple email and contact management platforms. If you use multiple accounts—such as Microsoft 365 for work and Google for personal use—your contacts end up split between them. ContactZapp syncs them all together, so adding or changing a contact in one account automatically updates it in the others.

The platform finds and merges duplicate contacts within each account and across all of them. You can let it merge clear matches automatically or review each one individually before merging. Every contact detail is preserved, including all phone numbers, email addresses, and notes.

All changes are logged and can be undone for up to 12 months. Your contacts are encrypted and backed up, and you can export them in standard formats (vCard or JSON) at any time. You can set individual accounts to read-only to protect them from changes, and choose your sync frequency: hourly, daily, or manual.

Feature notes

  • Two-way sync across Google, Microsoft, Apple and CardDAV
  • Merge duplicates in one go, or review them one by one
  • Full change history with undo capability
  • Backups and vCard export
  • Sync frequency control (hourly, daily, or manual)
  • Set accounts to read-only mode
  • Preserve all phone numbers and email addresses
  • Up to 5 encrypted account backups
  • 12-month undo history
  • Restore deleted contacts for 12 months

Pricing

Pricing model: Freemium

Free plan: 2 synced accounts, 100 contacts, no time limit. Easy plan: $4.00/month (billed $47.94/year, was $95.88). Unlimited plan: $8.00/month (billed $95.94/year, was $191.88). 50% off Easy and Unlimited with code HALLOWEEN.

FAQ

What is ContactZapp?
ContactZapp keeps one contact list synced across all your accounts: Google, Microsoft, Apple and CardDAV. Add or change a contact in one account and it changes in the others. It also merges duplicates and you can undo any change for 12 months.
Which accounts can I connect?
You can connect Google (Gmail and Google Workspace), Microsoft (Microsoft 365 and Outlook), Apple iCloud and any CardDAV server. You can connect more than one of each, with your plan setting how many.
How often do my contacts sync?
Sync frequency is hourly, daily or only when you ask. You choose this in Settings and the choice applies to all your accounts, starting on Manual only.
Can I undo a merge?
Yes. You can click Undo right after the merge, or use History later. You can roll back one contact, one sync or everything to any moment in the last 12 months, and the change is sent to your accounts.
What happens to my contacts if I cancel?
Nothing is deleted from your accounts. On a smaller plan, some accounts or contacts may stop syncing. Your contacts in Google, Microsoft, Apple and your CardDAV server stay as they are.

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