The column most lists leave out is the last one. A cleaner needs standing access to your mailbox to work, so how it funds itself is part of the product rather than trivia. Prices were read from each vendor's own site, and each entry links to the page we read.
1. Premail
Free for up to 2 personal inboxes, then $9/mo, $79/yr, or $99 oncePlatform: Mac, Windows, Linux
Best for: Keeping an inbox clean rather than cleaning it once
Most tools here are for the backlog. Premail is for the arrivals: it watches new mail and applies rules you write in plain English, so the inbox stays clean instead of needing another cleanup in six months, and its Inbox Cleaner runs the same rules over up to 90 days of mail you already have. It runs as a desktop app, so no service holds standing access to your mailbox. The cost is that it only works while your computer is on and there is no phone app, which makes it a poor fit if you want triage to happen overnight on your phone.
SourcePremail pricing
2. Clean Email
$9.99/mo, or $29.99/yrPlatform: Web, iOS, Android, Mac
Best for: The most complete cleanup toolkit across several mailboxes
Clean Email is the strongest all-rounder for a one-off cleanup: bulk actions, automatic rules, smart views, a screener for unknown senders, and unsubscribe, with every feature on every tier. It prices only on mailbox count, so covering a household costs far less than paying per person. It says its income comes from subscriptions rather than data, which separates it from the free options below.
SourceClean Email alternatives
3. Mailstrom
$9/mo, or $59.95/yrPlatform: Web
Best for: Genuinely enormous backlogs
Mailstrom groups a mailbox into bundles by sender, subject, size or age so you can act on thousands of messages in one go. Its tiers move on three axes at once: account count, how large a mailbox it will process, and how many filters you get. If your inbox is measured in hundreds of thousands of messages rather than hundreds, this is the shape that fits.
SourceMailstrom alternatives
4. SaneBox
$9.49/mo, or $5.42/mo billed annuallyPlatform: Web (works in any email app), iOS, Android
Best for: Triage that keeps working when your computer is off
SaneBox is a triage service rather than a cleaner: it sorts incoming mail into folders and leaves the important things in the inbox, and because it runs on their servers it keeps working while you sleep. Worth reading the tiers carefully, because they cap how many email accounts each one covers, so a second inbox means a higher tier rather than a second connection.
SourceSaneBox alternatives
5. Leave Me Alone
10 unsubscribes free, then $19 for a 7-day pass, or plans from $9/mo, or $7.50/mo billed yearlyPlatform: Web, Android
Best for: Paid bulk unsubscribe across many email providers
Leave Me Alone lists the subscriptions in your inbox and unsubscribes from the ones you pick, and it names Gmail, Outlook, Yahoo, AOL, Fastmail and iCloud among the providers it works with. The free allowance is 10 unsubscribes. After that you buy a one-off 7-day pass or a plan priced by how many accounts it covers; paid plans add a screener for unknown senders, and the top plan adds a rollup of the newsletters you keep. It is a cloud service that says it does not sell your email data, which is what the price pays for. There is a web app and an Android app; an iOS app is announced but not out.
SourceLeave Me Alone alternatives
6. InboxPurge
Free plan, then $5 once, for 7 days, or $7/mo, or $48/yrPlatform: Chrome extension (desktop), Gmail only
Best for: A cheap Gmail cleanup that stays in your browser
InboxPurge is a Chrome extension that adds a sidebar to Gmail, where you pick senders and unsubscribe or delete in bulk. It works through the Gmail API from inside your browser and says your emails never leave it, which is a different trust model from the cloud services above. The limits are just as plain: Gmail only, desktop Chrome only, and no phone app yet. For a one-off purge of a single Gmail account, the week pass is about as cheap as paid cleanup gets.
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7. MailMop
Free, or Pro at $1.89/mo, billed annually at $22.68/yrPlatform: Web (runs in your browser), Gmail only
Best for: Sender-by-sender Gmail cleanup on a tight budget
MailMop analyses a Gmail inbox inside your browser and shows which senders fill it, so you can unsubscribe, label or delete by sender. The analysis and unsubscribe are free; bulk delete, blocking and advanced filtering are in Pro. It says no email content is stored on its servers, and its code is published on GitHub, where you can read it or host your own copy for free. Gmail is the only provider it supports.
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8. Unroll.Me
FreePlatform: Web, iOS, Android
Best for: Rolling newsletters into one daily digest
Unroll.Me handles one job well: collapse the subscriptions you want to keep into a single daily digest and unsubscribe from the rest. It does not do broader cleanup. There is no paid tier on offer, which is worth a moment of thought rather than a shrug, because a free service that needs permanent mailbox access is funded somehow.
SourceUnroll.Me alternatives
9. Cleanfox
FreePlatform: Web, iOS, Android
Best for: A fast free cleanup, if its funding model suits you
Cleanfox does one-click unsubscribe and bulk deletion, free, and it is unusually direct about why it can be. Its own homepage states that it sells data for statistical purposes to stay free. That is their description, not an accusation, and it is more than most free tools disclose. Whether it is an acceptable trade is your call, but you should get to make it knowingly.
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10. Edison Mail
FreePlatform: iOS, Android
Best for: Unsubscribing from inside the email app on your phone
Edison Mail is a full email app rather than a separate cleaner, and it earns a place here for one-tap unsubscribe and sender and domain blocking built into the inbox you already read. It is free, and its own site says why: "Our research business keeps Edison Mail free." Its privacy page describes that research as aggregated and anonymized, built from commercial mail such as receipts, and says you can opt out. It is not a backlog tool, but if you want cleanup to happen where you read mail on your phone, it is the most convenient option here.
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