Education & Reference
Mainichi
Last updated 2026-07-18 · benchmark measured 2026-09-13 — deterministic & reproducible
Mainichi is a Japanese vocabulary app using SRS flashcards and a prefecture-based journey.
Are you the maker of Mainichi? Claim this listing. It is free, takes a meta tag, a DNS record or GitHub admin rights, and never changes the score.
Launched something? Add your product, free.
To cite this score: legit.show/s/mainichiapp-com/2026-09-13. That address never changes; this page moves with every re-measure.
Legit.Show scored Mainichi 83/100 on 2026-09-13, measured across all 7 frames from its public surface. legit.show/s/mainichiapp-com/2026-09-13
Is Mainichi production-ready?
Legit.Show scores Mainichi 83 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Mainichi (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 — 83/100
- Accessibility — 96/100
- Security — 80/100How this compares across the catalogue: The Web Security Baseline
- Privacy — 25/100How this compares across the catalogue: The Privacy Gap
- Reliability — 100/100
- Standards — 100/100
- Discoverability — 100/100
What we measured
- Security headers present: HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
- No Content-Security-Policy.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 719 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 built it
Michał Paczyński
Who it's for
Japanese learners · Language students · Mobile learners · JLPT prep students · Casual learners
Pricing
Free download available; Premium and Lifetime tiers mentioned but specific pricing not stated
Visit Mainichi → · Alternatives to Mainichi → · How this was measured →