AI Email Assistants

Inbox Zero

Open source Editorial rank #1

Labeled and drafted our test inbox with the fewest misses. Open source, so the privacy-cautious can self-host.

Best for: Gmail triage plus drafts in your voice · Works with: Gmail, Outlook

8.4
Editorial score · how it's scored
Last verified: Placeholder — pre-launch
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Quick verdict

Choose it for
Gmail triage plus drafts in your voice
Avoid it if
People unwilling to grant full mailbox access and unable to self-host

Key facts

Price
From $16/mo Placeholder
Works with
Gmail, Outlook
Primary job
Triage + drafting
Permissions
Full mailbox read/write access (self-hosting keeps data on your infrastructure) Placeholder
Open source
Yes

Test results

Scored against one shared inbox of 412 real messages under the published rubric — read the methodology → All pre-launch dimension scores and notes below are representative and labeled Placeholder until the first full test cycle is published.

Triage accuracy
8.8

Labeled the 412-message inbox with the fewest misses of the tools tested. Placeholder

Draft quality
8.6

Drafts matched our tone more often than any other tool. Placeholder

Setup effort
7.9

Plain-English rules take minutes; self-hosting takes longer. Placeholder

Privacy posture
8.2

Requests full mailbox access, but open source and self-hostable. Placeholder

Price for value
8.1

Mid-priced against the field for triage plus drafting. Placeholder

Strengths and limitations

What stood out

  • Drafts matched our tone more often than any other tool Placeholder

Know before you go

  • Needs full mailbox access; self-hosting mitigates it Placeholder

Side-by-side

Tested alternatives

Built something we should test?

Submissions go to a moderation queue, not straight to a public listing. Nothing gets a score until we've run the inbox against it ourselves.

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