Klar vs Prompt To App

Who is it for

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

Problem it solves

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.

How it solves it

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.

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