# Klar > AI spam filter for Apple Mail. AI spam filter for Apple Mail. The model runs on your Mac, so no message ever leaves it. Free, no account, works with iCloud, Gmail, Outlook and IMAP. ## Facts - Website: https://klar.im - Pricing: free - Categories: AI & Machine Learning - LotsDirectory page: https://lots.directory/products/klar - Listing state: Unclaimed. We listed this product from its public website, and its owner has not claimed it yet. ## Detailed info ## What is Klar? Klar is a spam filter for Apple Mail on macOS 14 Sonoma or later, on Apple Silicon. Classification runs on the Mac, mail is not uploaded, and the spam filtering is free and stays free. ## What Klar does Install Klar from the App Store and switch it on in Mail. There is no account and no cloud, and nothing to configure. Klar checks each message when it arrives and moves spam and phishing to Junk. Spam is moved, never deleted. Three profiles are Cautious, Standard, and Aggressive. Regular mail goes to Inbox, newsletters go to Marketing, and spam goes to Junk. The model is XLM-RoBERTa, a 382 MB classifier, at 13 to 44 ms per message on an M1 Pro, using the Mac GPU. It handles 100+ languages. The part that reads the inbox has no network access. Klar Plus is an optional add-on, not on sale yet. It learns from corrections, reads the whole mailbox, clears existing spam, and sorts promotions. A milter for Postfix and SMTP, and filtering for Stalwart, runs on infrastructure under your control. ## Who Klar is for Klar is for Apple Mail on a Mac with macOS 14 Sonoma or later, on Apple Silicon, an M1 or newer. It works with anything Apple Mail reads: iCloud, Gmail, Fastmail, Outlook, and custom IMAP. People running their own mail server can use the milter for Postfix and SMTP, or the Stalwart setup, on infrastructure under your control. ## How Klar works Install from the App Store and switch Klar on in Mail, under Settings and Extensions, with the checkbox ticked. No account, no cloud, nothing to configure. Mail asks Klar, and Klar files the message into Inbox, Marketing, or Junk. If Klar misclassifies a message, drag it back, Junk to Inbox or Inbox to Junk. With Klar Plus, that correction retrains the filter and a nightly pass re-checks older mail. An email report opens a draft. The user reviews, edits, and sends it. Classification does not run on a server. ## Key features - Filters new spam in Apple Mail on the Mac, with no account and no expiry. - Moves spam and phishing to Junk and never deletes the message. Profiles are Cautious, Standard, and Aggressive. - Sorts regular mail, newsletters, and spam into Inbox, Marketing, and Junk. - XLM-RoBERTa runs on the Mac GPU, 13 to 44 ms per message on an M1 Pro, in a 382 MB classifier, across 100+ languages. - The inbox reader has no network entitlement, so it cannot send mail anywhere. - Klar Plus, not on sale yet, learns from corrections, reads the whole mailbox, clears existing spam, and sorts promotions. - A milter for Postfix and SMTP, plus Stalwart filtering, runs on infrastructure under your control. ## Pricing As listed on klar.im, checked 13 October 2026. Prices can change; see the site for current terms. - Klar is €0. It filters new spam, stays on the Mac, and has no account and no expiry. Spam filtering is free and stays free. - Klar Plus Monthly is €3 .99 /mo, about €0.13 a day, and €9.99 after launch. Klar Plus is not on sale yet. - Klar Plus Yearly is €39 a year, about €0.11 a day, with 2 months free every year, a 60+% launch discount, and €99 after launch. - These are the launch prices, and they go up once it ships. The launch list sends a discount code when it does. - One Klar Plus licence covers one person using one personal Apple Account, with unlimited inboxes and Macs. It is not priced per inbox or per machine. - Payment goes through Paddle, with cards, PayPal, and Apple Pay, and EU VAT handled. Fourteen days from the purchase, no reason needed, and EU withdrawal rights apply on top. - If payment stops, Klar keeps filtering. Klar Plus stops adding to it. What it learned stays on the Mac. ## Facts from klar.im, checked 13 October 2026 - Made in the EU. The website runs on EU servers. The filter that reads the inbox has no network access. - One Klar Plus licence is for one person and one personal Apple Account, with unlimited inboxes and Macs. - Klar now filters spam for Stalwart, on a mail server under your control. Written from Klar's own website ([Homepage](https://klar.im/), [Pricing](https://klar.im/pricing), [About](https://klar.im/manifesto), [Docs](https://klar.im/support)). The maker can claim this listing to edit it. ## FAQ ### Is Klar free? Yes. Klar spam filtering is free and stays free. Klar Plus is an optional paid companion that adds a dedicated Marketing folder and learns from corrections. Klar Plus is not on sale yet. ### Does Klar upload mail? Not automatically. Classification runs on the Mac, and the app and extension have no network access. An email report opens a draft. The user reviews, edits, and sends it. ### Which mail accounts does it work with? Anything Apple Mail reads: iCloud, Gmail, Fastmail, Outlook, and custom IMAP. Klar classifies the messages Mail shows, regardless of provider. ### What if Klar misclassifies a message? Drag it back, Junk to Inbox or Inbox to Junk, and the message moves to the right folder. With Klar Plus, that correction retrains the filter and a nightly pass re-checks older mail. ### What does the Mac need? macOS 14 Sonoma or later, on Apple Silicon, an M1 or newer. Klar is free on the App Store. --- Source: https://lots.directory/products/klar · Machine-readable context by LotsDirectory.