Indie dev builds 15-book multilingual kids' reading app with Fable 5.1 in 3 days
GCWebDesigner · x · 2026-09-10
Designer MengTo built StoryComet in three days with Fable 5.1: 15 animated children's books in 5 languages with translated voiceovers, covers, and a full UI.
- Day 1: prototype, posted on X
- Day 2: 9 more books, languages, progress tracking, quizzes, pins and souvenirs
- Day 3: polish, domain, Supabase, accounts, Stripe, optimization
Parents track progress while kids take quizzes, collect pins and 3D souvenirs, and switch languages on the fly; six books teach English, Spanish, French, Japanese or Chinese. The first three books are free; the other 12 unlock via membership at early-bird pricing of $39/year (reg. $79) or $79 lifetime (reg. $149). The author says 3D models and tokens cost hundreds of dollars — a complete one-person AI app monetization case study.
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