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Head-to-head · Email Migration Software

Microsoft Cross-tenant User Data Migration vs Cloudiway Mailbox Migration Tool

  • Updated Oct 2026
  • Both researched from official sources
  • 8 checks side by side
Higher score Microsoft Cross-tenant User Data Migration #5 in Email Migration Software 8.2/10 Pricing on request ✓ 5 of 7 features Visit Microsoft
Cloudiway Mailbox Migration Tool #25 in Email Migration Software 6.2/10 Paid ✓ 7 of 7 features Visit Cloudiway

Microsoft Cross-tenant User Data Migration leads on 0 checks, Cloudiway Mailbox Migration Tool on 0, and 8 are even. Who comes out ahead on the 8 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft Cross-tenant User Data Migration · 8.2/10
  • Most featuresCloudiway Mailbox Migration Tool · 7 of 7

Microsoft Cross-tenant User Data Migration scores higher on our rubric for email migration software: 8.2 against 6.2 out of 10; our editors rank them #5 and #25.

Microsoft Cross-tenant User Data Migration is the better fit for microsoft 365 cross-tenant migrations. Cloudiway Mailbox Migration Tool is the better fit for staged migrations with predictable one-time pricing.

  • Microsoft Cross-tenant User Data Migration fits best

    Microsoft 365 cross-tenant migrations

  • Cloudiway Mailbox Migration Tool fits best

    Staged migrations with predictable one-time pricing

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Microsoft Cross-tenant User Data Migration 8.2/10 Visit ↗ Cloudiway Mailbox Migration Tool 6.2/10 Visit ↗
At a glance
Editor score 8.2 6.2
Ranking #5 in Email Migration Software #25 in Email Migration Software
Best for Microsoft 365 cross-tenant migrations Staged migrations with predictable one-time pricing
Pricing model Paid Paid
Starting price — $570 one-time
Free plan — —
Free trial — —
Deployment Cloud Cloud
Support Docs Tickets, Docs
Integrations 6 integrations 6 integrations
Built for Small business, Mid-market, Enterprise Enterprise
Features Microsoft Cross-tenant User Data Migration 5/7 · Cloudiway Mailbox Migration Tool 7/7
Calendar migration ✓ ✓
Contacts migration ✓ ✓
Tenant-to-tenant moves ✓ ✓
Staged migration ✓ ✓
Microsoft 365 support ✓ ✓
Google Workspace support Not checked yet ✓ (best)
IMAP support Not checked yet ✓ (best)
Our review
Pros
  • Cross-tenant Exchange migration with phased batches
  • Moves email, contacts, calendars, tasks, and notes
  • Includes OneDrive plus Teams chats and meetings migration
  • Migrates email, contacts, calendars, tasks, notes, rules, and archives
  • Supports staged workflows, delta synchronization, and parallel processing
  • Connects Microsoft 365, Google Workspace, Exchange, Zimbra, Lotus Notes, and IMAP
Cons
  • Requires a per-user, one-time migration license
  • Pricing requires contacting sales
  • API and PowerShell workflows require administrator involvement
  • The lowest listed bundle starts at a $570 one-time price
  • No free plan is available
  • The Standard plan covers a single workload rather than a complete user migration
Our verdict

Microsoft Cross-tenant User Data Migration is a Microsoft 365 add-on for moving user data between separate tenants. It fits organizations handling mergers, acquisitions, divestitures, or reorganizations where Exchange Online data must move…

Read the review →

Cloudiway Mailbox Migration Tool is a cloud-based platform for transferring mailbox data between supported email systems. It is designed for organizations moving to Microsoft 365 or Google Workspace from Microsoft Exchange, Google…

Read the review →
  1. Microsoft Cross-tenant User Data MigrationEmail Migration Software 8.2Pricing on request
  2. Cloudiway Mailbox Migration ToolEmail Migration Software 6.2Paid

Strengths and trade-offs

  • Microsoft Cross-tenant User Data Migration — where it wins

    • Cross-tenant Exchange migration with phased batches
    • Moves email, contacts, calendars, tasks, and notes
    • Includes OneDrive plus Teams chats and meetings migration

    Where it doesn't

    • Requires a per-user, one-time migration license
    • Pricing requires contacting sales
    • API and PowerShell workflows require administrator involvement

  • Cloudiway Mailbox Migration Tool — where it wins

    • Migrates email, contacts, calendars, tasks, notes, rules, and archives
    • Supports staged workflows, delta synchronization, and parallel processing
    • Connects Microsoft 365, Google Workspace, Exchange, Zimbra, Lotus Notes, and IMAP

    Where it doesn't

    • The lowest listed bundle starts at a $570 one-time price
    • No free plan is available
    • The Standard plan covers a single workload rather than a complete user migration
  • Microsoft Cross-tenant User Data Migration8.2/10 · Pricing on request

    A focused Microsoft 365 migration add-on for phased, cross-tenant data moves.

    Visit MicrosoftFull verdict →
  • Cloudiway Mailbox Migration Tool6.2/10 · Paid

    A structured option for staged, multi-workload migrations across major email systems.

    Visit CloudiwayFull verdict →

More comparisons

All email migration software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update