Lumen
2026React Native (Expo)
A multilingual (PT/EN/ES) mobile microlearning app: 10–15 minute sessions across 12 knowledge tracks (philosophy, history, psychology, science, and more), designed and built end to end — product, UI design, development, and marketing.
Layers touched
Front-endBack-endData
Stack
Notes
- Lesson cycle: short cards, a quiz to reinforce it, then a summary.
- XP, levels, daily streaks, and achievements.
- Premium tier: audio narration, AI-generated weekly/monthly progress reports, a personal glossary, and track-completion certificates.
- OpenAI API powers the lesson text-to-speech and the AI reports, run through Google Cloud Functions.
- Closed-source personal product — no public repository.