“SmartFusion turned my idea into a polished app faster than I expected. The gamified flow keeps users coming back, the AI answers are genuinely helpful, and it feels great on mobile.”
Verified clientProduct owner · CodexHND
Mobile web app + RAG AI
CodexHND
A gamified driving-exam app with AI answers grounded in real legal sources.
A mobile-first driving exam learning app with gamified UX and an AI assistant grounded in legal sources.
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Type
Mobile web app
Role
Product + AI build
Focus
Retention + trust
Stage
In production
Stack
Next.jsMobile-first PWARAGVector searchGamification
The problem
Driving exam preparation needs repetition, motivation, fast explanations, and trustworthy source-grounded answers.
What we built
Duolingo-style questionnaires, XP, missions, leaderboard, and a RAG assistant that justifies answers from legal sources.
01
Built a retention loop
A Duolingo-style loop — XP, missions, and a leaderboard — keeps learners coming back for short, repeated sessions.
02
Grounded the AI in legal sources
The RAG assistant answers from legal sources and shows its justification, so answers are trustworthy, not guessed.
03
Designed mobile-first
Every flow is built for quick study sessions on a phone, where most of the prep actually happens.
Why it converts
Retention-first UX paired with AI users can actually trust keeps learners in the product and acting on its answers — session after session.
What it delivers
Learners keep coming back via XP, missions, and a leaderboard
Trustworthy answers, justified from real legal sources
Quick study sessions designed for the phone
AI that supports decisions right inside the product
A closer look
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