Productivity

OnKey

Last updated 2026-10-23 · benchmark measured 2026-10-23 — deterministic & reproducible

OnKey is a free, open-source singing trainer for Mac that scores your pitch in real time.

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To cite this score: legit.show/s/singonkey-app/2026-10-23. That address never changes; this page moves with every re-measure.

Legit.Show scored OnKey 75/100 on 2026-10-23, measured across all 7 frames from its public surface. legit.show/s/singonkey-app/2026-10-23

Is OnKey production-ready?

Legit.Show scores OnKey 75 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on OnKey (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 91/100
• Accessibility — 96/100
• Security — 60/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 25/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 92/100
• Discoverability — 60/100

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 — 128 ms to first byte.
• Returns a proper 404 for unknown routes.
• 3 of 3 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.

Who it's for

Singers · Music learners · Mac users · Karaoke enthusiasts · Voice practice

Pricing

Free and open source (MIT)

Sources and updates

Description

Taken from singonkey.app's own website on 2026-10-23.

Operator

Daniel Murrell, as named in singonkey.app'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 2026-10-23.

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

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