<p><b>Startup description</b></p><p>My product is a fully functional, mobile-first Micro-SaaS platform designed for data analysts to practice for technical interviews in short, 5-minute bursts. The platform moves away from lengthy 10-hour video courses and instead focuses on high-retention, gamified practice.</p><p>It contains a robust database of 2,500+ real interview questions across 6 core skills (SQL, Python, Power BI, Tableau, Excel, and Data Theory) spanning 4 difficulty levels, 22 articles on the blog.</p><p><b>Key technical and product mechanics include:</b></p><ul> <li><b>Built-in Spaced Repetition:</b> Incorrectly answered questions reappear until answered correctly 3 times to ensure real mastery.</li> <li><b>Battle Mode:</b> A live challenge environment where users can battle other data professionals under simulated interview pressure.</li> <li><b>Assessment &amp; Certification Engine:</b> Timed skill tracks (Junior, Middle, Senior) that issue shareable certificates for LinkedIn and CVs upon completion.</li> <li><b>AI Interview Assistant:</b> Embedded AI tips to help users fix technical weak spots on the fly.</li> </ul> <p>The project was launched as a validated EdTech asset. While it has acquired 250+ organically registered users, I have shifted my core focus to an AI-MedTech venture and decided to offload this platform to an owner who has the time for marketing and growth execution.</p><p><b>Key highlights:</b></p><ul> <li><b>Content Assets:</b> 2,500+ vetted data interview queries, flashcards, and practical responses.</li> <li><b>Core Skills Covered:</b> SQL, Python, Power BI, Tableau, Excel, Data Theory.</li> <li><b>Advanced Features:</b> Gamified "Battle Mode", spaced-repetition logic, and custom certification engine.</li> <li><b>Users:</b> 250+ organically registered users.</li> <li><b>Bonus Distribution Asset:</b> Full transfer of the associated Telegram channel (420+ highly targeted data professional subscribers) for instant, zero-cost marketing.</li> </ul> <p><b>Key highlights:<b></b></b></p><ul> <li>Annual revenue: €180 ARR (Currently €15 MRR from 3 active recurring subscribers via Stripe).</li> <li>Annual profit: €180 (The infrastructure runs entirely serverless, meaning near-zero maintenance costs).:</li> <li>Churn rate: Not tracked</li> <li>LTV: Not tracked</li> <li>CAC: Not tracked</li> <li>Business margin: 95%+</li> <li>Other important metrics: 2,505 vetted technical questions, 250 organically registered users, 420+ live battles conducted, and 56 certifications issued.</li> </ul> <p><b>Tech Stack</b></p><ul> <li>Frontend: React 18, TypeScript, Vite, Tailwind CSS, shadcn/ui (highly modular architecture)&nbsp;</li> <li>Backend: Supabase (PostgreSQL, 25 Edge Functions managing AI features, translations, Stripe webhooks, and secure RLS policies).&nbsp;</li> <li>&nbsp;Hosting: Lovable (CDN, automated deployments).</li> </ul> <p><b>Marketing and growth</b></p><p>100% organic word-of-mouth growth with a clear upward registration trend since late 2025. Big opportunity for a buyer to introduce a B2B corporate model, wrap the PWA into native apps for App Store/Google Play, or run targeted campaigns.</p><p><b>Return on investment</b></p><p>The product has a proven conversion framework. A buyer can achieve rapid ROI by capitalizing on the included Telegram community to drive immediate premium tier sign-ups.</p><p><b>Startup assets<b></b></b></p><ul> <li>Full GitHub repository ownership (159 React/TS files).</li> <li>Supabase project (PostgreSQL DB with 2,505 questions, migrations, and 25 Edge Functions).</li> <li>Stripe setup with active webhooks.</li> <li>Premium domain.</li> <li>22 SEO-optimized blog posts.</li> <li><b>BONUS:</b> Full ownership transfer of theTelegram channel (420+ active, highly targeted data professional subscribers).</li> </ul> <p><b>Risks</b></p><p>Minimal technical risks due to the modern, serverless stack. Minor API costs associated with OpenAI usage for the recommendations feature (only a few dollars a month).</p><p><b>Summary</b></p><ul> <li><b>Proven Monetization Framework:</b> This is not a speculative MVP. The platform has already successfully converted users into premium paying subscribers via Stripe, proving that data professionals are willing to pay for this specific interactive experience.</li> <li><b>High-Value Content &amp; IP Asset:</b> Generating 2,505 high-quality, technically vetted interview questions with detailed explanations across 7 major data subfields takes months of work and thousands of dollars in subject-matter expert costs. The buyer gets this massive database fully structured and ready to go from day one.</li> <li><b>Advanced Product Mechanics:</b> Features like the gamified live "Battle Mode", spaced-repetition memory engine, and automated CV-shareable certification tracks significantly boost user retention (MAU/WAU), which is usually the hardest metric to achieve in EdTech.</li> <li><b>Instant Distribution Loop Included:</b> You are not launching into an empty room. The inclusion of the active Telegram channel (420+ targeted data professional subscribers) gives you a direct, warm marketing channel to cross-promote the platform, run ads, and launch new features for $0.</li> <li><b>Modern, Serverless Architecture:</b> Built on React 18 and Supabase with isolated, modular Edge Functions. Maintenance overhead costs are practically $0/month, and the infrastructure scales automatically, requiring near-zero server management from the owner.</li> </ul> <p>✅&nbsp;$135 TTM revenue</p><p>✅ 3 customers</p><p>✅ Business model: Freemium</p><p>✅ Built with TailwindCSS, Supabase, React</p>