Productivity

Tansei

Last updated 2026-07-20 · benchmark measured 2026-08-09 — deterministic & reproducible

Tansei is a Mac shelf app that stores copied clips at the edge of your screen.

Is Tansei production-ready?

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

The 7 Frames

• Performance — 94/100
• Accessibility — 100/100
• Security — 100/100
• Privacy — 100/100
• 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 — 849 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 it's for

Mac users · designers · developers · content creators · knowledge workers

Pricing

$7 USD one-time purchase; 3-day free trial

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