EmailTriager vs Inbox Zero

EmailTriager runs in the background of Gmail, auto-triaging and drafting personalized replies in your voice (True Voice) for your review; reported pricing is Essentials $20/month, Pro $50/month, Pro Unlimited $80/month (third-party source, confirm on emailtriager.com; checked Oct 2026). Inbox Zero (getinboxzero.com) is an open-source AI email assistant/client for Gmail and Outlook: the client is free and open source, AI features (auto-labeling, bulk unsubscribe, drafting) are $20/month with a 7-day trial, with older reported tiers at $6-12/month annual (checked Oct 2026). Pick EmailTriager if you want background auto-drafting in your own voice without changing clients; pick Inbox Zero if you want an open-source, self-hostable client with AI as an optional add-on. No hands-on test was run; no winner declared.

Decision point	EmailTriager	Inbox Zero
Best suited to	Gmail users who want replies drafted from their own past emails, without anything being sent automatically	Professionals drowning in Gmail or Outlook mail who want automatic sorting and pre-written drafts.; Teams that want inbox, calendar and chat access from Slack, Telegram, Teams, mobile or the web.
Plans and cost	Per accepted draft (sent with fewer than 20% of words changed); subscription amounts and quotas were not captured, so the contract stays unknown.	The pricing page read lists the mail app as free and AI plans at $18 per user per month for Starter, $28 for Plus and $42 for Professional on annual billing, with monthly billing shown at $20, $35 and $50 per month; AI plans include a 7-day free trial and annual billing saves up to 20%. The page read names no currency for these $ amounts, so no charge fact is recorded.
Limitations	Gmail reply drafting with per-accepted-draft billing; subscription amounts were not captured	The AI assistant is a paid service with a 7-day trial, so free use covers the mail app rather than unlimited AI processing.; A credit card is required to start the AI trial, though no charge applies until the trial ends.

Decision point

EmailTriager

Inbox Zero

Best suited to

Gmail users who want replies drafted from their own past emails, without anything being sent automatically

Professionals drowning in Gmail or Outlook mail who want automatic sorting and pre-written drafts.; Teams that want inbox, calendar and chat access from Slack, Telegram, Teams, mobile or the web.

Plans and cost

Per accepted draft (sent with fewer than 20% of words changed); subscription amounts and quotas were not captured, so the contract stays unknown.

The pricing page read lists the mail app as free and AI plans at $18 per user per month for Starter, $28 for Plus and $42 for Professional on annual billing, with monthly billing shown at $20, $35 and $50 per month; AI plans include a 7-day free trial and annual billing saves up to 20%. The page read names no currency for these $ amounts, so no charge fact is recorded.

Limitations

Gmail reply drafting with per-accepted-draft billing; subscription amounts were not captured

The AI assistant is a paid service with a 7-day trial, so free use covers the mail app rather than unlimited AI processing.; A credit card is required to start the AI trial, though no charge applies until the trial ends.

Use the same input

Your inbox is overflowing and you want AI to auto-sort emails and draft replies in the background, without switching email clients.

What a successful result must preserve

Compare by working style (background automation vs standalone client), open-source/self-hosting, AI feature scope and pricing.

Evidence and test status

Pricing and feature comparison based on publicly available information. Plan prices, allowances and feature claims below come from the two vendors' official pricing and feature pages plus recent third-party pricing reads, re-checked October 2026. We did not run a hands-on test on either tool; no quality winner is declared.

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