Lifestyle & Other

Crescendo 4×4

Last updated 2026-08-26 · benchmark checked 2026-09-27 · unchanged since 2026-08-26 — deterministic & reproducible

iOS app for learning the Norwegian 4×4 HIIT protocol, starting from 30-second intervals.

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To cite this score: legit.show/s/mistylogic-com/2026-09-27. That address never changes; this page moves with every re-measure.

Legit.Show scored Crescendo 4×4 87/100 on 2026-09-27, measured across all 7 frames from its public surface. legit.show/s/mistylogic-com/2026-09-27

Is Crescendo 4×4 production-ready?

Legit.Show scores Crescendo 4×4 87 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Crescendo 4×4 (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Performance; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 100/100
• Accessibility — 100/100
• Security — 60/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 70/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 92/100
• Discoverability — 85/100

What we measured

• Security headers present: X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
• No Content-Security-Policy and no HSTS.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 180 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.

Who built it

product account @mistylogicapps

Who it's for

Fitness enthusiasts · HIIT athletes · VO₂ max improvers · Beginners to advanced runners · Apple ecosystem users

Sources and updates

Description

Taken from mistylogic.com's own website on 2026-08-26.

Operator

Misty Logic Apps, as named in mistylogic.com's terms, privacy page or footer.

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 2026-09-27.

Put together from public information, without Crescendo 4×4's involvement. If anything here is wrong, tell us and a person will check it.

Visit Crescendo 4×4 → · Alternatives to Crescendo 4×4 → · How this was measured →