| 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 import | Included: reads Entra ID and Exchange through Microsoft Graph | Premium importer, $50 per month |
| 200 phones, per year | €0 | $4,176 ($1.49 × 200 × 12, plus $600 for the Entra ID importer) |
| Trial | Not needed: free forever, no credit card | 14 days, no credit card |
| How contacts reach the phone | Apple's ContactProvider framework; no account to configure on the phone | CardDAV account on iOS and Android, deployed by MDM (Jamf, Intune) or provisioning profile |
| Where contacts are stored | Microsoft 365 and the phone. No contact server. | Contactzilla's hosted address books, synced to phones |
| Phones | iPhone and iPad (iOS 18.2+) | iOS and Android |
| Who manages the contacts | Your Entra ID: joiners and leavers update automatically | Your team in Contactzilla, with custom fields, labels and read-only or full access |
| Compliance | GDPR privacy policy; usage data in Azure Sweden Central (EU), can be switched off. No SOC 2 report. | SOC 2, GDPR and HIPAA |