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AI · Consumer SaaS · UK

UK Driving Theory SaaS

An AI-powered driving theory prep platform for the UK market — adaptive quizzes, hazard-perception mechanics, gamified leaderboards, and OpenAI-backed content generation.

AI SaaS

0 → production

AI-assisted

Question authoring

Stripe

Subscription billing

Role

Sole engineer · Product engineering → AI integration → launch

Timeline

v1 in ~10 weeks · live to UK learners

Stack

Next.jsTypeScriptOpenAIPostgreSQLTailwindStripe

The challenge

  • Static question banks bore learners and produce poor retention.
  • UK theory test covers a long tail of edge cases hard to author by hand.
  • Solo learners drop off without competitive, social mechanics.

Approach

  • Adaptive engine that re-weights questions based on a learner's miss pattern.
  • OpenAI-backed explanation generation, gated by author-reviewed prompts.
  • Gamified leaderboards and daily streaks to drive repeat sessions.
  • Stripe-powered subscription with a friction-light free tier.

Outcome

  • Launched a full AI SaaS end-to-end as a solo engineer.
  • Daily-active retention driven by streaks + leaderboards.
  • Author time per new question cut dramatically by AI-assisted drafting.