Klar is a local spam and phishing filter for Apple Mail that runs a multilingual model on your Mac without sending data to the cloud.

Klar is for Mac users who want stronger mail protection while keeping all processing on-device and private.

Does Klar offer a free plan?

Klar is available free on the Mac App Store for macOS 14+ on Apple Silicon.

Klar processes incoming mail locally on Apple Silicon using a multilingual model and moves spam to Junk without uploading messages.

What are Klar's key features?

Key features include on-device inference, multilingual support, automatic junk sorting, trust for known contacts, and adjustable sensitivity profiles.

Which platforms or integrations does Klar support?

Klar is designed for macOS with Apple Mail and runs on Apple Silicon; no cloud integrations or external platforms are used.

How is Klar different from typical cloud-based filters?

Klar processes mail locally and does not send data to cloud servers, unlike many cloud-based filters that require server access.

Is my data safe with Klar?

Yes, Klar has no network entitlement and does not transmit mail data unless you explicitly send an editable draft.

How do I get started with Klar?

Install Klar from the Mac App Store, ensure your Mac meets the OS requirements, and enable the filter from within Apple Mail.

Does Klar support confidential or sensitive emails?

Klar is designed to protect privacy by keeping processing on-device and not telemetry sending by default.

Can I customize how aggressive the spam filtering is?

Yes, Klar offers three sensitivity profiles to balance spam detection with preserving legitimate mail.

Klar

Name: Klar
Author: Nicolas Ha

by Nicolas Ha

No reviews yet

AI spam filter for Apple Mail.

Sep 01, 2026🤖AI and Machine Learning

by Nicolas Ha

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391

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About

Overview

Apple Mail's junk filter misses a lot, especially AI-written scams and phishing. The filters that don't miss too much (Gmail, cloud gateways) read every message you receive on somebody else's server.

Klar is the third option. It runs a real multilingual model (XLM-RoBERTa, 550M parameters) on your Mac: every message is classified in 13 to 44 ms on Apple Silicon, across 100+ languages, and spam is moved to Junk automatically.

The part of Klar that reads your inbox has no network entitlement, so by construction it cannot send your mail anywhere. No account, no cloud, no automatic telemetry; a report leaves only when you send its editable email draft yourself.

Turn on Trust my contacts to keep verified mail from people you know in your Inbox, and choose among three sensitivity profiles (Cautious, Standard, Aggressive) to set the balance between catching spam and protecting real mail. Free on the Mac App Store. macOS 14+, Apple Silicon. Built in the EU.

LaunchIt data

Klar on LaunchIt

Klar launched on LaunchIt on September 1, 2026, in AI and Machine Learning. It ranks #5 of the 8 products launched that day. Since launch it has collected 1 upvote and 391 page views.

Launched: Sep 1, 2026
Rank that day: #5of 8 launches
In category: #15of 44 in AI and Machine Learning
Upvotes: 1
Page views: 391
Rating: None yetBe the first

Live numbers from LaunchIt. Ranks count upvotes, then page views.

LaunchIt data

Klar's launch week

48 products launched on LaunchIt between August 31 and September 6, 2026. The top 12 are shown.

Ranked by

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Klar

391

Klar launched on LaunchIt on September 1, 2026, one of 48 products launched that week. With 391 page views since launch, it has the 19th most of its launch week.

Page views recorded by LaunchIt.

At a glance

Klar in a Nutshell

Who is it for?

Mac users who want stronger spam protection without sending their emails to cloud services

Problem

Apple Mail often misses AI generated scams and phishing, while other options read messages on external servers. This creates a gap between privacy and effective filtering, leaving users exposed to unwanted mail. Current solutions either miss spam or require cloud-based processing that users may not trust.

Solution

Klar runs a real multilingual model locally on Apple Silicon to classify mail in 13 to 44 ms, moving spam to Junk without ever leaving the device. It requires no account, no cloud, and no telemetry, with user control over trust and sensitivity settings.

What makes it unique

Klar operates entirely on-device with no network entitlement, ensuring mail data never leaves the Mac. Built-in EU privacy standards and a privacy-first design guarantee that only user-sent editable drafts leave the device. It supports multiple languages and offers adjustable threat sensitivity for personalized filtering.

In practice

Use Cases

Filter spam on Mac locally

Protect inbox from phishing

Tune sensitivity for fewer false positives

Trust known contacts to preserve legitimate messages

Run without cloud dependencies

Use multilingual phishing detection

Topics

Klar vs similar tools

How Klar compares with Humanize Max, Marvienta and Vitality AI Coach for Garmin, other AI and Machine Learning products on LaunchIt.

Product	Pricing	Rating	Upvotes	Launched
KlarThis product	Not listed	No reviews	1	Sep 1, 2026
Humanize Max	Not listed	No reviews	2	Aug 22, 2026
Marvienta	Not listed	No reviews	2	Sep 5, 2026
Vitality AI Coach for Garmin	Not listed	No reviews	1	Sep 5, 2026