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Enterprise Contacts vs Contactzilla.

Contactzilla hosts shared address books and syncs them to phones over CardDAV, usually deployed by MDM. Enterprise Contacts skips the hosted copy: it reads your Microsoft 365 directory with read-only Graph permissions and publishes it straight into the iPhone's Contacts app.

Enterprise ContactsContactzilla
Price€0 for any number of users$1.79, $1.49 or $1.20 per device per month by fleet size, billed annually
Microsoft Entra ID importIncluded: reads Entra ID and Exchange through Microsoft GraphPremium importer, $50 per month
200 phones, per year€0$4,176 ($1.49 × 200 × 12, plus $600 for the Entra ID importer)
TrialNot needed: free forever, no credit card14 days, no credit card
How contacts reach the phoneApple's ContactProvider framework; no account to configure on the phoneCardDAV account on iOS and Android, deployed by MDM (Jamf, Intune) or provisioning profile
Where contacts are storedMicrosoft 365 and the phone. No contact server.Contactzilla's hosted address books, synced to phones
PhonesiPhone and iPad (iOS 18.2+)iOS and Android
Who manages the contactsYour Entra ID: joiners and leavers update automaticallyYour team in Contactzilla, with custom fields, labels and read-only or full access
ComplianceGDPR privacy policy; usage data in Azure Sweden Central (EU), can be switched off. No SOC 2 report.SOC 2, GDPR and HIPAA

Contactzilla details as published on contactzilla.com in October 2026.

Pick Contactzilla if…

  • The contacts you need on phones are not in Microsoft 365: customers, suppliers, crews or case contacts.
  • Your team needs to edit shared contacts, add custom fields, or sync from Google Workspace or Salesforce.
  • You run Android, or need HIPAA.

Pick Enterprise Contacts if…

  • The contacts you need are your own colleagues, already maintained in Entra ID and Exchange.
  • You would rather not keep a second, hosted copy of the directory or pay per device for it.
  • You want no CardDAV account or MDM profile to push to each phone.

FAQ

If the contacts you need on phones are your own Microsoft 365 colleagues, yes. Enterprise Contacts reads them straight from Entra ID and Exchange. If you need to share curated address books of customers, suppliers or crews that are not in Microsoft 365, Contactzilla is built for that.

No. It publishes contacts through Apple's ContactProvider framework, so there is no CardDAV account to set up or deploy on each phone, and no hosted address book in between.

At Contactzilla's published prices, 200 devices fall in the $1.49 per device per month tier, billed annually: $3,576 a year, plus $600 a year for the Microsoft Entra ID importer. Enterprise Contacts is €0.

Try it on your tenant.

Free for any Microsoft 365 tenant. No credit card. No MDM. Set up in about 10 minutes.

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