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Koydo Research Note

Koydo Catalog Counts (Audit, April 2026)

Audited counts of Koydo's learning catalog as of April 17, 2026. Source for the headline numbers cited across koydo.app marketing surfaces.

Koydo Lyceum·Published April 17, 2026·Updated May 15, 2026
Methodology

Direct SQL counts against the production module_catalog, lesson_catalog, and related tables. Run captured in commit range df7106d9eb..00511642f6.

Legacy catalog (audited 2026-04-17)

Modules: 8,372 (module_catalog rows). Subjects: 179 (DISTINCT subject in module_catalog). Live lessons: 247,872 (lesson_catalog visible rows after slop quarantine). College-level lessons: 52,140. Curated knowledge-base entries: 79,836.

Question banks: 47,704 legacy questions, 11,957 trivia questions. Wiki corpus: 135,987 sources, 318,337 seed-to-corpus RAG links. Music: 1,190 tracks, 4,140 songs. Practice activity types: 13.

Testing verticals (added 2026-04)

Testing question bank: 927,899 questions across NCLEX, CDL, JEE, NSC, ENEM, IELTS, CAT, and other regional examinations.

Matura (Polish matriculation, CKE-aligned): 32,449 questions. Past-paper questions across 28 country-board adapters: 7,822.

Product facts

Educational games: 323. Languages offered for study (distinct from UI translation locales): 56. Interactive activity types: 20. Live science labs: 8. AI tutoring models in rotation: 4. Audiobook hours: 850. E-books: 1,200.

Sum totals

Sum of individually-teachable content items across legacy plus testing plus Meridian surfaces: 1,275,703 items (247,872 lessons + 47,704 legacy questions + 11,957 trivia + 927,899 testing + 32,449 Matura + 7,822 past papers).

Citing this count

When marketing copy or external references cite specific Koydo catalog numbers, they should point to this research note as the source. The next scheduled re-audit is set for the quarterly review cycle.