Education & Reference

FlappyTone

Last updated 2026-08-21 · benchmark measured 2026-08-21 — deterministic & reproducible

A voice-controlled game for practicing Mandarin tones in the browser.

Is FlappyTone production-ready?

Legit.Show scores FlappyTone 78 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on FlappyTone (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 — 93/100
• Accessibility — 88/100
• Security — 45/100
• Privacy — 25/100
• Reliability — 100/100
• Standards — 97/100
• Discoverability — 100/100

What we measured

• Security headers present: HSTS.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 245 ms to first byte.
• Returns a proper 404 for unknown routes.
• 1 of 1 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.

Who built it

Pierre (@pierreBuildsDev)

Who it's for

Mandarin learners · Non-native speakers · Tone practice beginners · Language students

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