Price checked Oct 18, 2026
New launch review · AI email assistants
Inbox Zero Review (2026)
Inbox Zero review: an open-source AI email assistant for Gmail and Outlook. It labels every email, pre-writes replies in your voice, blocks cold email and bulk-unsubscribes, and now ships a free email app.
- Free: email app; AI plans 7-day trial
- Price: from $18/user/mo yearly
- Works with: Gmail, Outlook
- Launched: Product Hunt, Oct 18, 2026
New launch, not tested hands-on. Inbox Zero (“Open-source Superhuman alternative”) was #1 on the Product Hunt daily leaderboard for October 18, 2026 when we checked (about 8:15 AM ET). The product itself is not brand new: its terms of service are dated July 16, 2023, and this launch adds the new Inbox Zero Mail app. Everything below comes from getinboxzero.com. We have not connected an inbox to it.
Affiliate disclosure. We are in Inbox Zero’s affiliate program (run through Dub). The pricing button on this page is our referral link: if you sign up through it and pay, we may earn 25% of each sale for as long as you stay a customer, at no extra cost to you. It does not change our verdict, and the prices above come from the official site. Affiliate disclosure.
Summary
Quick verdict: a strong pick if you live in Gmail or Outlook and want AI that sorts mail and drafts replies without moving to a closed inbox. The email app is free; the AI costs $18 to $42 per user a month on yearly billing. The code is open source, so you can also self-host.
- Two parts: a free email app (web, desktop, iPhone) and paid AI plans that work inside Gmail, Outlook or the app.
- AI plans per user a month: Starter $18, Plus $28, Professional $42 on yearly billing; $20, $35 and $50 paid monthly.
- Every AI plan has a 7-day free trial; Inbox Zero offers a refund if you email within 14 days of upgrading.
- Core jobs: auto-labels every email, pre-drafts replies in your tone, blocks cold email, bulk unsubscribe and archive, email analytics, pre-meeting briefings.
- Rules are written in plain English; drafts can use your calendar and CRM data.
- Open source (code on GitHub, self-hosting possible); the hosted product says it is SOC 2 Type 2 certified and does not train AI on your data.
Watch: Inbox Zero in 60 seconds
Made by SaaS Finder Hub from Inbox Zero’s public website screenshots. Voiceover is AI-generated. Prices in the video are as of October 18, 2026 and may have changed; check the official site for today’s price.
Pricing
Source: getinboxzero.com/pricing, checked October 17, 2026 at about 8:20 AM ET and re-checked October 18, 2026 at about 9:10 AM ET (Annually and Monthly toggles). Prices in USD, per user.
| Plan | Yearly billing (per user/mo) | Monthly billing (per user/mo) | Yearly saving shown | Main extras |
|---|---|---|---|---|
| Email app | Free | Free | n/a | Gmail and Outlook accounts in one inbox; web, desktop, iPhone |
| Starter | $18 | $20 | 10% | Labels, reply drafts, cold-email blocker, bulk unsubscribe, analytics, meeting briefings |
| Plus | $28 | $35 | 20% | 2 email accounts per user, AI meeting notetaker, Slack, app integrations, digests, unlimited knowledge base |
| Professional | $42 | $50 | 16% | Team-wide analytics, priority support, dedicated onboarding manager |
| Enterprise | Custom | Custom | n/a | SSO, SCIM, on-premise deployment, account manager |
On a phone, swipe the table sideways to see every column.
Price snapshot: This is the price at the moment we wrote this review (October 18, 2026). The price may have changed by the time you read it, so check the official site for today’s price.
- All three AI plans start with a 7-day free trial.
- Discounts for students, nonprofits and open-source projects are offered by email; the page does not list amounts.
- Plus lists 2 email accounts per user (Professional includes everything in Plus); Starter does not list extra accounts.
- Starter’s knowledge base is “Limited”; Plus and Professional are “Unlimited”. The page does not define the limit.
- Inbox Zero says Starter is “half what Superhuman charges”; that comparison is Inbox Zero’s, not ours.
What a year costs for one user (our math)
| Plan | Monthly × 12 | Yearly (12 × yearly rate) | You save |
|---|---|---|---|
| Starter | $240 | $216 | $24 |
| Plus | $420 | $336 | $84 |
| Professional | $600 | $504 | $96 |
Our arithmetic from the listed per-month rates. A team pays these numbers per user.
Affiliate link. This is our Inbox Zero referral link (Dub). If you sign up and pay, we may earn 25% of each sale for your customer lifetime at no extra cost to you. Check getinboxzero.com/pricing for today’s prices. Affiliate disclosure.
Price history
| Checked | Starter | Plus | Professional |
|---|---|---|---|
| $20 · $18 yearly | $35 · $28 yearly | $50 · $42 yearly |
We re-check this page every month and add a row.
Features
From getinboxzero.com, its pricing and about pages, October 18, 2026. Described, not tested.
- Auto-labelling: smart categories (To Reply, Newsletter, Marketing, Calendar, Cold Email, Urgent and more) or your own.
- Pre-drafted replies: every email that needs an answer gets a draft in your tone, built from your email history and calendar.
- Plain-English rules: describe how mail should be handled and the assistant applies it.
- Clean-up tools: bulk unsubscribe and archive, cold-email blocker, auto-file attachments, auto-forward.
- Analytics: who emails you most and what clogs the inbox; team-wide analytics on Professional.
- Beyond the inbox: read and reply from Slack, Telegram, mobile or the web (Teams marked “Coming soon”), pre-meeting briefings and an AI meeting notetaker (Plus and up).
- Inbox Zero Mail (new): a free email app for Gmail and Outlook on web, Mac, Windows and iPhone (no Android version of the app is listed).
- Open source: public code on GitHub (the site claims 12k+ stars) and a self-hosting option.
Who it’s for
- Founders, executives and operators who get more email than they can handle by hand.
- People who want to stay in Gmail or Outlook: the AI works there, so you don’t have to switch clients.
- Privacy-minded or technical teams who like that the code is public and self-hostable.
- Not for you if you use an email provider other than Google or Microsoft, or if you want a one-time price rather than a per-user subscription.
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The catch
The app is free, but the AI that does the real work is a per-user subscription, and you hand it access to your mailbox.
- You connect your full Gmail or Outlook account; read the privacy and security pages before you do (Inbox Zero says no AI training on your data and SOC 2 Type 2).
- Per-user pricing adds up for teams: five people on Plus is $140 a month on yearly billing.
- Only Gmail, Google Workspace and Outlook are supported, based on the pages we read.
- Microsoft Teams access is marked “Coming soon”, and the new email app lists no Android version.
- Self-hosting is possible but is your own technical work; the page gives no price for it because the code is open source.
- We have not tested how good the drafts or labels are.
Verdict
- Email app (free): try it if you want a faster inbox for several Gmail and Outlook accounts; costs nothing.
- Starter ($18 yearly / $20 monthly): the right plan for one person who wants sorting and reply drafts.
- Plus ($28 / $35): worth it only if you need the meeting notetaker, Slack, integrations or a second inbox.
- Professional ($42 / $50): for teams that want shared analytics and onboarding help.
This is the price at the moment we wrote this review (October 18, 2026). The price may have changed by the time you read it, so check the official site for today’s price.
Worth trying if: you drown in Gmail or Outlook, want AI drafts and labels without changing clients, and value open source.
Skip it if: you are on another email provider, or you are not comfortable giving an AI tool access to your mailbox.
Not tested hands-on. Prices can change; re-check getinboxzero.com/pricing before you buy.
Inbox Zero FAQ
How much does Inbox Zero cost?
As of October 18, 2026, the Inbox Zero email app is free. The AI plans cost $18 (Starter), $28 (Plus) or $42 (Professional) per user a month billed yearly, or $20, $35 and $50 paid monthly, each with a 7-day free trial. Check getinboxzero.com/pricing for today’s price.
What is the main downside of Inbox Zero?
The useful part, the AI, is a per-user subscription that needs full access to your Gmail or Outlook mailbox, and only Google and Microsoft email are supported.
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