Klar vs Leave Me Alone

What actually differs: where each filter runs, who gets to read your mail, and what it costs.

AspectKlarLeave Me Alone
Runs onYour MacLeave Me Alone's servers
Who can read your mailNo one new during filtering. Classification stays on your device.Reads your mailbox in its cloud and stores subscription metadata
Works withApple Mail, with any account: IMAP, Gmail, iCloud, ExchangeGmail, Outlook and any IMAP mailbox
PriceFree foreverFrom $9/month, or a $19 one-time 7-day pass

Klar fits better when Spam is the problem: a filter that learns on your Mac, without giving a service access to your mailbox

Looking for a Leave Me Alone alternative?

The honest picks

Leave Me Alone
Built for bulk unsubscribing: it follows unsubscribe links for you and rolls newsletters into digests. Its spam blocker learns in its cloud and targets cold outreach. Pick it to prune subscriptions, not as a spam filter.
Klar
Pick Klar if you read mail in Apple Mail and want a modern multilingual model that runs entirely on your Mac. No account, no cloud, nothing to hand over.

Product and price details from the vendors' public pages, July and August 2026: leavemealone.com. Klar is not affiliated with any vendor named here. No vendor endorses Klar. Product names only identify the tools.

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Reclaim your inbox

Spam filter for Apple Mail. Free on the App Store.

Download on the App Store