How Work Inbox compares, with sources.
Every fact about another product comes from its own pricing and help pages, linked on each comparison. Where they do something better, the page says so.
| Feature |  Work Inbox |  Google Workspace |  Microsoft 365 |  Zoho Mail |
|---|---|---|---|---|
| Price per person | €1 / €2.50 / €5 a month (Starter, Pro, Business), billed monthly; first 5 people free, at least 5 billed; self-hosted free | $7 to $22 a month (annual), $8.40 to $26.40 flexible | $7 to $22 a month, annual commitment | Free for 5, then $1 to $7 a month |
| Free plan or trial | Included: Free for up to 5 people; 14-day trial for teams, no card. Self-hosting free for good | Partly: 14-day trial, no free plan | Trial terms not confirmed on Microsoft's page | Included: Free plan for 5 people; 15-day trial of Workplace Professional |
| Shared mailboxes | Included: Unlimited on every plan, no licence per mailbox | Partly: No shared mailbox as such: Google Groups' collaborative inbox | Included: Shared mailboxes without a licence up to 50 GB, up to 25 users | Included: Shared mailbox group type |
| Aliases and catch-all | Included: Unlimited aliases, catch-all per domain, plus addressing | Partly: Up to 30 aliases per user | Aliases supported; limits not confirmed | Partly: 30 aliases per mailbox; catch-all per domain |
| Notes or docs edited together | Included: Shared notes with live editing, checklists, tables, @mentions | Included: Google Docs, the most polished live co-editing | Included: Word, OneNote and Loop with co-authoring | Included: Zoho Writer in Workplace; Notebook separately |
| Self-hosting and source code | Included: Open source; runs on your own Cloudflare account | Not available: No: hosted by Google only | Not available: No (Exchange Server on premises is a separate product) | Not available: No: hosted by Zoho only |
| IMAP and mobile mail apps | Not available: Not yet: web app only (installable). IMAP gateway planned | Included: Gmail apps on iOS and Android; IMAP | Included: Outlook on desktop and phones | Partly: Not on the free plan; paid plans not confirmed on the pricing page |
| Claude / ChatGPT (MCP) | Included: MCP server: search and read mail, notes, contacts and drive files on every plan; replies and changes on Pro and Business | Partly: Official MCP servers in developer preview; Gemini on Standard and up | Partly: Work IQ MCP server; Copilot may need a licence per user | Included: Official Zoho Mail MCP server |
| Calendar, contacts, files | Partly: Calendar, contacts (a team address book) and a shared drive; no office documents or video calls | Included: Calendar, Contacts, Drive, Meet, Sheets, Slides | Included: Outlook calendar and contacts, OneDrive, Teams | Included: Calendar, contacts, WorkDrive, Meeting, Cliq |
vs Google Workspacevs Microsoft 365vs Zoho Mail
vs Proton Mail
vs Fastmail
vs Nextcloud
vs Cloudflare Agentic InboxBring your domain
Your team's mail on it this afternoon.
$ open workinbox.io/signupstart →
$ git clone https://github.com/workinbox-io/inbox.git && cd inbox && pnpm install && pnpm setup