Productivity

Klar

Last updated 2026-10-05 · benchmark measured 2026-10-05 — deterministic & reproducible

Klar is a free AI spam filter for Apple Mail that runs locally on your Mac.

Are you the maker of Klar? Claim this listing. It is free, takes a meta tag, a DNS record or GitHub admin rights, and never changes the score.

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To cite this score: legit.show/s/klar-im/2026-10-05. That address never changes; this page moves with every re-measure.

Legit.Show scored Klar 98/100 on 2026-10-05, measured across all 7 frames from its public surface. legit.show/s/klar-im/2026-10-05

Is Klar production-ready?

Legit.Show scores Klar 98 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Klar (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Security; its weakest is Standards. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 98/100
• Accessibility — 97/100
• Security — 100/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 100/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 92/100
• Discoverability — 100/100

What we measured

• Security headers present: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 1364 ms to first byte.
• Returns a proper 404 for unknown routes.
• 3 of 3 sampled routes reachable.
• Has a reachable privacy policy.
• Sets cookies / loads scripts with no consent prompt.
• Discoverable: structured data, sitemap, OpenGraph image, canonical URL.

Who built it

product account @klarspam

Who it's for

Apple Mail users · macOS users · Privacy-conscious professionals · People overwhelmed by spam

Pricing

Free tier; Klar Plus €3.99/month or €39/year (launch pricing)

Sources and updates

Description

Taken from klar.im's own website on 2026-10-05.

Benchmark

Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-10-05.

Put together from public information, without Klar's involvement. If anything here is wrong, tell us and a person will check it.

Visit Klar → · Alternatives to Klar → · How this was measured →