SaneBox vs Clean Email vs Mailstrom vs Leave Me Alone (2026): 5 Tools, Real Prices, One Table

The full ledger, side by side

1Statements about SaneBox, Clean Email, Mailstrom, and Leave Me Alone reflect each company’s own public positioning as of July 2026. Check sanebox.com, clean.email, mailstrom.co, and leavemealone.com for current features and pricing.

What each one costs

Billed monthly, the four tools that aren’t ours land within a dollar of each other: $9 to $9.99. Billed yearly, the order reshuffles: Clean Email’s $29.99 for one account undercuts every other cycle on the page, and SaneBox’s lowest rate is a biyearly cycle. Entry plans below, cheapest advertised cycle beside them.

Upgrades here mostly buy accounts and capacity, not different behavior: SaneBox’s Dinner plan lists $42.99/mo for 4 accounts and all features, Clean Email lists 10 accounts for $99.99/yr, and Mailstrom’s Plus plan covers 3 email addresses. Free entry points differ more: Leave Me Alone lists 10 free unsubscribes with no card, while Sieve’s 7-day free trial shows what it would have filtered from the inbox you already have, before you pay anything. Current prices: sanebox.com, clean.email, mailstrom.co, leavemealone.com, and Sieve’s pricing section.

SaneBox, in short

SaneBox describes itself as AI email management for any inbox: algorithms trained on your behavior sort less-important mail into folders like SaneLater, and its feature list includes SaneBlackHole for banishing senders outright. The fit is a whole inbox re-sorted by importance rather than just the junk removed, on whatever provider you use; it positions itself as working with most of them, not just Gmail. Our SaneBox review digs into whether the folder system earns its keep.

Pick SaneBox if:

• You want your whole inbox triaged by importance (not just the junk handled), and you’re fine with mail moving to folders like SaneLater automatically.
• You’re outside Gmail, or across several providers; its Lunch plan lists 2 accounts and the Dinner plan 4.
• You’ll use the extras: its pricing page gates features by tier (2 on Snack, 6 per account on Lunch, all on Dinner at $42.99/mo).

Clean Email, in short

Clean Email’s own pages pitch it as an inbox cleaner for any provider: bulk tools for clearing years of accumulated mail, plus Auto Clean rules that keep processing incoming mail and a Screener that holds first-time senders until you approve them. It earns its slot when the backlog runs to years and the pile itself is the problem. Our Clean Email review covers how the bulk tools and the ongoing rules fit together.

Pick Clean Email if:

• You want bulk actions, not one-message-at-a-time triage: the manual version of this job is our guide to blocking emails in Gmail, and it stops being practical at backlog scale.
• You want the cleanup to stay done: its Auto Clean rules and Screener keep working on incoming mail after the purge.
• You’re covering several inboxes: its App Store listing prices 5 accounts at $19.99/mo and 10 at $99.99/yr.

Mailstrom, in short

Mailstrom’s pitch, per its own site, is the simplest way to clean up your inbox: it groups your existing mail into bundles (by sender, subject, or list), so hundreds of messages become a handful of decisions you approve yourself, and per its FAQ, rules can carry those decisions forward to incoming mail. Nothing happens behind your back, which is the point. Our Mailstrom review walks through the bundle workflow in detail.

Pick Mailstrom if:

• You don’t trust automation with your mail and want to approve every deletion yourself, bundle by bundle.
• The job is a one-time purge more than a subscription: its Basic plan lists $9/mo, easy to run for a month and cancel.
• You’re cleaning several addresses: Plus covers 3 email addresses and Pro covers 20, with unlimited email removal on every plan.

Leave Me Alone, in short

Leave Me Alone calls itself a privacy-first unsubscribe tool: it shows you the subscription mail in your inbox and unsubscribes you in one click, and its pages add Inbox Shield screening for first-time senders and a Spam Blocker aimed at spam and cold email. It makes sense when newsletters and mailing lists are the bulk of the problem: unsubscribing is the direct fix for lists you once joined. Our Leave Me Alone review covers the rest of its feature list.

Pick Leave Me Alone if:

• Subscription mail is most of your volume: unsubscribing removes it at the source, and our guide to unsubscribing safely covers when that’s the right move and when it backfires.
• You want a bounded spend: its pricing page lists a $19 one-off 7-day pass and 10 free unsubscribes to start, no card required.
• Privacy positioning matters to you: “privacy-first” is the frame its own pages lead with.

Where Sieve fits

Sieve ships with its judgment built in and learns yours as you go. Every incoming message is classified server-side within seconds. Cold outreach goes under a Solicitor label, phishing under Malicious, and both are archived out of your inbox rather than deleted. When it gets one wrong, drag the message back; the correction is recorded automatically and future classifications improve. Reply to someone and Sieve treats them as a trusted sender from then on. And you can steer it in plain English: "I'm not interested in recruiter pitches."

The four tools above hand you screening queues, rules, and folders to configure and review. Sieve ships with its own judgment about what cold outreach and phishing look like and applies it to every new message within seconds. In practice: flagged mail is archived under a Solicitor or Malicious label, never deleted; drag a message back to your inbox and the correction is recorded; reply to a sender and that sender is trusted permanently. You can steer the classifier in plain English, and phishing links are screened via Google Web Risk.

Leave Me Alone’s pages aim its Spam Blocker at spam and cold email too, at less than half Sieve’s price, alongside Inbox Shield’s screening of first-time senders. Sieve queues nothing for you to screen: it decides on its own, files the mail out of sight, and takes a correction when it gets one wrong. If you’d rather approve senders yourself and save the difference, their approach fits better, and their pages are the source for how it works.

Pick Sieve if:

• Your problem is the mail Gmail’s filter admits on purpose: cold outreach and well-crafted phishing. The free DIY methods handle the rest.
• You want hands-off filtering, not a screening queue or rules to maintain.
• You’re on Gmail or Outlook. Sieve supports both providers. It is $20/mo or $204/yr with a 7-day trial and a second inbox free.

Mail from people you already know (your domain, trusted senders, anyone in a thread with you) is cleared by deterministic rules before any AI runs, so its contents are never read by the model. Sieve stores no message bodies (mostly metadata, plus the subject line of flagged mail, encrypted and deleted after 30 days), and nothing is used to train models. Google's security review is complete, and SOC 2 Type II is in progress. Read the Privacy Policy.