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Workspace Sync vs Contactzilla
Both products get a Google Workspace directory onto phones. They do it in different ways.
Contactzilla pushes contacts into the phone’s built-in Contacts app. Staff do not install a directory app. Setup is usually through mobile device management (MDM), or a QR profile on each phone.
Workspace Sync is a dedicated iOS and Android app. An admin connects Google Workspace once. Each person signs in with their work Google account. There is no MDM and no profile to push.
If your company already runs MDM and wants contacts pushed to phones without any app, Contactzilla fits. If you want a directory without MDM — in an app, and in the phone’s own Contacts when each person turns it on — with one-tap WhatsApp and per-field privacy, Workspace Sync fits.
Quick comparison
| Workspace Sync | Contactzilla | |
|---|---|---|
| How contacts reach the phone | Dedicated iOS + Android app, which can also keep them in the native Contacts app | Native Contacts app |
| MDM required | No | Typical path is MDM; QR also available |
| Google Workspace source | Yes (read-only admin connect) | Yes |
| Per-field visibility | Yes | Read-only lists; MDM-oriented controls |
| One-tap WhatsApp / SMS / call | Yes, from the app | Via native Contacts / messaging |
| Free plan | Up to 5 users, forever | Trial / paid device plans |
| Paid price (public) | €1 per user / month (+ VAT) for all users, once you have 6 or more | From about $1.79 / device / month (1–199), billed annually |
| Best for | Teams ~10–500 on Google Workspace without MDM | Orgs that already manage phones with MDM |
Prices checked against public pages in September 2026. Confirm on each vendor’s site before you buy.
The real difference: app vs address book
Contactzilla’s pitch is “no apps to install.” Contacts land in the stock Contacts app, so caller ID and search behave like any other contact. That is strong when IT already controls phones with MDM.
Workspace Sync’s pitch is the opposite shape: a directory app staff sign in to, with no MDM. Admins choose who can sign in, who appears, and which fields each person sees. Each person can also let the app keep colleagues in the phone’s own Contacts app, so caller ID works, in a group or account of their own, apart from personal contacts.
Pricing example (same headcount)
Assume 50 people who need the directory.
- Workspace Sync: 50 × €1 = €50 / month (plus VAT where applicable).
- Contactzilla (MDM 1): 50 × $1.79 ≈ $89.50 / month, billed annually on their public MDM 1 band.
When to pick Contactzilla
- Phones are company-managed and MDM is already in place.
- Contacts must arrive on phones with no sign-in by each person.
- Staff should not install another app.
When to pick Workspace Sync
- BYOD or light device management — you will not enroll every phone in MDM just for a directory.
- You want admins to hide sensitive fields per policy.
- Field and agency teams live in WhatsApp and need one-tap reach from a directory.
- You want to start free (up to 5 users) and then pay €1 per seat for the whole team.
Bottom line
Contactzilla is an MDM-friendly native Contacts sync. Workspace Sync is a no-MDM Google Workspace directory app with cheap seats and field-friendly actions.
If you do not run MDM today, start with Workspace Sync — free for five, no card required.