Google Workspace vs Microsoft 365 (Office 365)
A requirements-based comparison of email, documents, sharing, security, device management, retention and total cost.
Content update:
Architecture and operating model
Google Workspace and Microsoft 365 address similar collaboration needs through different applications and operating models. Office 365 remains in some enterprise plan names; Microsoft 365 is not one fixed feature bundle. Compare selected plans, user roles and actual features rather than brand names.
Docs, Sheets and Slides are not function-for-function equivalents of Word, Excel and PowerPoint. Both ecosystems support online collaboration. Licensed Microsoft desktop apps may fit advanced or offline workflows, while Google’s supported offline options also merit testing. Do not reduce one platform to browsers and the other to desktops.
For Excel macros, add-ins, fonts, templates or external connections, pilot actual files. Opening a file does not prove calculations, macros or layout survive. Apps Script, VBA and Office automation use different models; treat automation migration as a separate work item.
Compare My Drive/shared drives with OneDrive/SharePoint ownership and sharing. Use identical departure, group-change, guest-access and offline-copy acceptance scenarios. Vault and Purview retention/eDiscovery do not automatically replace operational backups.
Compare identity and device management through implemented controls. Google 2SV, endpoint management and Context-Aware Access differ from Entra, Conditional Access and Intune in plan/add-on scope. Pilot unmanaged devices, mobile clients, APIs and emergency access. Do not assume all security capabilities are in base plans.
Total cost includes migration, training, independent backup, support, device management, automation conversion and coexistence alongside seats. Assess AI scope and data access separately. Compare current prices under the same country, currency, tax, commitment and feature scope; monthly sticker price alone cannot select one product for everyone.
- 1Requirements and critical workflows
- 2Equivalent plan scope
- 3Pilot both platforms
- 4Acceptance and total cost
Design parameters
- Workflow fit
- Exercise critical files, automation, email and external collaboration in equal pilots.
- Security scope
- Map identity, device, app, data and recovery controls to plans/add-ons.
- Lifecycle
- Test joining, role changes, departure and handover on both platforms.
- Total expenditure
- Estimate migration, conversion, training and operations alongside licences over the same period.
Google Workspace and Microsoft 365 comparison
Feature inclusion depends on plan, region, client and add-on licences. This table does not replace a purchase proposal; validate critical workflows in pilots.
| Criterion | Google Workspace | Microsoft 365 (Office 365) |
|---|---|---|
| Email and calendar | Gmail / Calendar; pilot clients, aliases and delegation. | Exchange Online / Outlook; verify plan, client and delegation scope. |
| Documents and spreadsheets | Docs / Sheets / Slides; test Office-file and automation compatibility. | Word / Excel / PowerPoint; web/desktop rights depend on plan. |
| Offline work | Verify offline setup and local-copy controls for supported apps/clients. | Validate licensed desktop and sync behaviour per file type. |
| Team files | My Drive / shared drives; check ownership and group grants. | OneDrive / SharePoint; separate personal and team ownership. |
| Meetings and communication | Meet / Chat; recording, external access and administration depend on plan. | Teams; verify meetings, external access and inclusion in the chosen offer. |
| Identity and devices | 2SV, endpoint management, Context-Aware Access; verify edition/platform scope. | Entra ID, Conditional Access, Intune; verify plan/add-on rights. |
| Retention / eDiscovery | Google Vault; service, account and licensing scope matters. | Microsoft Purview; workload, feature and licensing scope matters. |
| AI and automation | Gemini / Apps Script; assess entitlement, data access and compatibility. | Copilot / Office automation; assess entitlement and source permissions. |
| Cost and operation | Current plan plus migration, training, backup and support. | Current plan plus desktop/add-ons, migration, backup and support. |
Worked example
Company A relies on browser collaboration and customer sharing; company B relies on VBA, Excel add-ins and report templates. Do not default both to one product. A may weight sharing/identity boundaries more heavily; B may weight file/automation compatibility. Test both against their requirements.
In a two-week pilot, exercise 20 critical files, five automations, three external-sharing cases and one departure. Record pass, remediable and unacceptable outcomes; these counts are illustrative. Compare cost proposals after required controls/workflows are validated, including coexistence identity and data-ownership costs.
Troubleshooting
| Observation | Likely cause / distinction | Verification |
|---|---|---|
| A file opens but report results differ | Formulas, macros, add-ins or data connections may differ. | Compare calculations, layout and automation against accepted reference output. |
| A cheap plan needs additional licences | Required desktop or security features may not be included. | Map roles/features to current entitlement and total cost. |
| Migration completes but the old suite remains necessary | Critical automation or file dependencies may remain. | Report remaining dependencies, conversion cost and coexistence duration. |
Acceptance checks
- Justify selection through actual workflows and effective controls.
- Test critical files and automation on both sides.
- Compare offline and external-sharing behaviour.
- Validate security features per plan.
- Test ownership/access handover during departure.
- Include licences, conversion, backups and operations in total cost.
Related concepts
Authentication and sessions
Authentication proves who a user or workload is; authorization determines what that identity may do. Successful sign-in does not grant access to every resource. User sessions, service identities, API tokens and device certificates have different lifecycles. Design session duration, token renewal, employee departure, lost-device handling and emergency access alongside initial sign-in. Measure which existing sessions remain usable and which new accesses are denied when the identity provider becomes unavailable.
File permissions and service identities
File access combines users/groups, permission bits, ACLs and security policies. Running an application as root can hide permission problems; prefer a justified, restricted service identity in production. Directory traversal permission differs from file-read permission. Sharing permissions do not necessarily override filesystem restrictions. Identify the actual runtime user, directory chain and ACLs when troubleshooting. Test narrowly required access rather than opening permissions globally.
Retention and capacity
Retention defines which recovery points are kept and for how long. Daily, weekly and monthly points do not represent identical change patterns; full-copy creation and chain dependencies affect physical capacity. Retention decisions combine business requirements, applicable obligations and technical capacity. Longer retention does not automatically provide better recovery: the right point must be discoverable and readable. When changing a policy, test whether existing points are deleted immediately or handled differently by the product.
Cost boundaries
Cost includes more than purchase price or a monthly resource bill. Licensing scope, storage, egress, backup, support, operating effort and disruption impact are separate items. Compare equal service levels, capacity and time periods; a cheaper option may exclude an obligation. Compare forecast and actual spending by resource or business unit. Assess underuse risk for commitments and uncontrolled growth for flexible models. Verify pricing and licensing conditions against official documents at decision time.
Dependencies and restart order
Services commonly depend on identity, DNS, time, networking, databases and licensing. Record a dependency graph describing conditions for operation, not merely an equipment list. Recovery order follows that graph; circular dependencies may require emergency access paths. Distinguish restored infrastructure from resumed business activity. Assign an owner, validation method and alternative access path to each dependency. Test assumptions by deliberately making one component unavailable in a controlled end-to-end exercise.
Version and support lifecycle
Installability does not prove production support. Review the compatibility chain across OS, application, drivers, extensions and management tools. Update plans should record version, support end, restart needs and rollback methods. An unrepresentative test environment can produce misleading results. Validate service health and existing workflows after a change, not just version numbers. Remember that pinning a version can also prevent future security fixes.
Primary documentation
Editorial method
Prepared by the Doz Technology technical team using official vendor documentation. Scenarios and calculations illustrate the method; they are not completed customer tests. Before implementation, verify versions, licences, client support, security conditions and rollback in your environment. Select solutions against existing products and workload requirements.
Related collaboration guides
Google Workspace Setup, Licensing and User Administration
A controlled Workspace setup guide covering domains, users, organisational units, groups, licences and employee lifecycle.
Read the guideGoogle Workspace Gmail Migration: DNS, SPF, DKIM and DMARC
Plan Gmail migration with mail inventory, migration scope, MX changes, sender authentication and delta checks.
Read the guideGoogle Drive and Shared Drives: Ownership, Sharing and Permissions
Distinguish My Drive and shared drives; control team ownership, external sharing, group access, sync and employee departure.
Read the guideGoogle Workspace Security: MFA, Devices, OAuth and Audit
A layered security guide to 2-Step Verification, passkeys, device context, application grants and audit evidence.
Read the guideGoogle Workspace Vault, Retention and Backup Strategy
Distinguish Vault retention and holds from operational backups; test deletion, access, licensing and recovery scope.
Read the guideWe assess platform choice alongside your existing products, workloads and operational needs.