What is Inbox Zero?
Inbox Zero is an AI email assistant that connects to Gmail and Outlook accounts, organizes incoming mail into categories, and drafts replies in the user's tone based on email history and calendar. It also offers a separate free email app for Gmail and Outlook on web, desktop, and iPhone, and can be extended to Slack, Telegram, and mobile.
In practice, you can label mail automatically, see pre-written drafts waiting for responses, bulk unsubscribe from newsletters you never read, block cold emails, and review analytics showing who emails you most. Rules can be customized in plain English, and the project is open source with an option to self-host.
Key features
- Automatic labeling and categorization of emails
- AI-drafted replies in the user's voice
- Bulk unsubscribe and bulk archive
- Cold email blocker
- Email analytics
- Calendar and CRM-aware drafts
Who is it for
- Founders and executives
- Small business owners
- Customer support teams
- Teams handling high email volumes
Pros and cons
- Free email app for Gmail and Outlook
- Open source with self-hosting option
- SOC 2 Type 2 certified
- Limited knowledge base on the Starter plan
- Some integrations such as Teams are still coming soon
Inbox Zero pricing
| Plan | Price | Includes |
|---|---|---|
| Starter | 18 USD / month | Per user; sorting, drafts, cold email blocking, bulk unsubscribe, analytics, pre-meeting briefings; 7-day free trial. Annual billing saves 10%. |
| Plus | 28 USD / month | Per user; adds 2 email accounts, AI meeting notetaker, Slack and app integrations, email digests, auto-file attachments, unlimited knowledge base; 7-day free trial. Annual billing saves 20%. |
| Professional | 42 USD / month | Per user; adds team-wide analytics, priority support, dedicated onboarding manager; 7-day free trial. Annual billing saves 16%. |
Prices copied from Inbox Zero pricing, checked October 19, 2026. Currency as shown by the vendor; taxes may apply.
Is Inbox Zero free?
There is a free trial. The email app is free to use. The AI plans include a 7-day free trial.
Inbox Zero alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Notion | 9.50 EUR/mo | trial | Productivity & notes |
 Lindy | 29.99 USD/mo | trial | Productivity & notes |
 monday.com | 9 EUR/mo | yes | Productivity & notes |
 ClickUp | 7 USD/mo | yes | Productivity & notes |
 Raycast | not listed | yes | Productivity & notes |
 Gong | not listed | no | Productivity & notes |
All alternatives to Inbox Zero →
FAQ
What is Inbox Zero used for?
AI email assistant that sorts, drafts replies, and cleans up Gmail and Outlook inboxes for professionals and teams.
Is Inbox Zero free?
There is a free trial. The email app is free to use. The AI plans include a 7-day free trial.
How much does Inbox Zero cost?
The cheapest paid plan is 18 USD/mo (vendor pricing, October 19, 2026).
What are the best Inbox Zero alternatives?
Closest alternatives: Notion, Lindy, monday.com, ClickUp, Raycast.
Data checked October 19, 2026 on the vendor website (getinboxzero.com).