Clean Email vs Inbox Zero

Clean Email

• Clearing a backlog of thousands of old emails
• Unsubscribing from many mailing lists in one sitting
• Families or small groups sharing a 5 or 10 account plan

Inbox Zero

• Gmail and Outlook users who want mail sorted and replies drafted for them
• Teams that prefer open source software they can inspect or self-host
• Clearing newsletters and cold outreach out of a crowded inbox

Clean Email

• A free account can clean 1,000 emails, plus 100 a week with reminders on. Screener, Auto Clean and the Unsubscriber need a paid plan.
• It is not an email client: it connects to your mailbox and works alongside the email app you already use.
• Prices here are US prices from the App Store listings and Clean Email's own pages. Its plans page shows local-currency prices that vary by region.
• The US App Store lists 5-account purchases at several prices without a billing period, so that plan's price is given as a range.

Inbox Zero

• There is no free plan for the hosted service: every plan starts with a 7-day trial that needs a credit card.
• It supports Gmail, Google Workspace and Microsoft Outlook accounts only.
• The AI meeting notetaker, Slack and app integrations, email digests and auto-filed attachments start at Plus.
• The free Inbox Zero Tabs browser extension works with Gmail only, and the mobile apps leave some settings to the web app.

Clean Email

Unsubscriber

Lists every subscription and newsletter in one place and unsubscribes for you. If a list ignores the request, its messages are moved to the trash automatically.

Bulk cleaning

Groups mail by sender, date or size so that thousands of messages can be deleted, archived, labelled or moved in a single action.

Smart Folders and Cleaning Suggestions

Predefined filters gather mail such as social notifications, rideshare receipts and online shopping, and suggestions point to messages people usually delete or archive.

Screener

Holds messages from senders who have never emailed you before, so you can allow or block each one before it reaches the inbox.

Auto Clean rules

Rules based on sender, domain, status or age automatically move, star, mark, delete or archive messages as they arrive or once they get old.

Privacy Monitor

Checks your email address against known data breaches on a regular basis and alerts you if it has been compromised.

Inbox Zero

AI labels and plain-English rules

Incoming mail is sorted into categories such as To Reply, Newsletter, Marketing and Cold Email. You can add categories of your own and describe in plain English how the assistant should handle mail.

Pre-drafted replies

Emails that need a response get a draft written in your tone, based on your email history and calendar, waiting in the inbox for you to review and send.

Bulk unsubscribe and archive

Shows which senders you never read so you can unsubscribe from and archive them in one click. A cold email blocker and email analytics are part of every plan.

Optional email client

A keyboard-first client for Gmail and Outlook on web, desktop and iPhone, with a split inbox, a command palette, several accounts in one inbox and team comments that are never sent as email.

Chat from Slack and Telegram

The assistant can be reached from Slack or Telegram to read mail, draft replies and manage the inbox. The pricing page lists the Slack integration from the Plus plan.

Open source and self-hosting

The code is public on GitHub, with the web and desktop email client under the AGPL license. The docs cover self-hosting with Docker, on Vercel, AWS or Kubernetes.

Clean Email

• Free$0

  Clean up to 1,000 emails, plus 100 a week with Cleanup Reminders on. Premium tools are available only during the 14-day trial.

• 1 account$9.99

  per month, or $29.99 per year

  All features and unlimited cleaning for one email account.

• 5 accounts$19.99–$69.99

  US App Store in-app prices; billing period not shown

  All features for five email accounts, sold monthly or yearly on the plans page. Unused accounts can be shared with friends and family.

• 10 accounts$29.99

  per month, or $99.99 per year

  All features for ten email accounts. Unused accounts can be shared with friends and family.

Inbox Zero

• Starter$18

  per user / month, billed annually; $20 billed monthly

  Sorts and labels every email, drafts replies in your voice, blocks cold emails, bulk unsubscribe and archive, email analytics and pre-meeting briefings.

• Plus$28

  per user / month, billed annually; $35 billed monthly

  Adds 2 email accounts per user, the AI meeting notetaker, Slack and app integrations, email digests, auto-filed attachments and an unlimited knowledge base.

• Professional$42

  per user / month, billed annually; $50 billed monthly

  Everything in Plus, plus team-wide analytics, priority support and a dedicated onboarding manager.

• EnterpriseCustom

  SSO, SCIM, on-premise deployment and a dedicated account manager, arranged with the sales team.

Clean Email

• Annual discount

  Yearly plans cost about 75% less than monthly

  For one account the yearly plan is $29.99 against $9.99 a month, which Clean Email's App Store listings describe as saving 75% on the monthly rate.

• Education

  Education discounts on request

  The plans page says Clean Email offers discounts for education, with quotes handled by email. The size of the discount is not published.

• Nonprofit

  Non-profit discounts and bulk pricing

  The plans page also offers discounts for non-profits and special bulk pricing for organizations, quoted by email.

Inbox Zero

• Annual discount

  Save up to 20% with annual billing

  Annual billing lowers Starter from $20 to $18, Plus from $35 to $28 and Professional from $50 to $42 per user a month. The pricing FAQ puts the saving at up to 20%.

• Education

  Student discount on request

  The pricing FAQ says students can email the company to have a discounted plan set up. The size of the discount is not published.

• Nonprofit

  Nonprofit and open-source project discounts

  The same FAQ answer covers nonprofits and open-source projects, which can email for a discounted plan. No rate is published.