Building Elektriku Treener
The full story is coming soon!
I'm working on a detailed technical deep dive about creating this offline exam prep app. Meanwhile, you can explore the app and its features on the landing page.
🧰 Also in my dev portfolio:
• Fonsalus OÜ — Estonian business consulting website (built with Cloudflare & Resend)
• Personality Compass — Self-discovery app with 454 questions
⚡ What is Elektriku Treener?
Elektriku Treener is a free, ad-free, fully offline exam prep app created by an electrician for electricians in Estonia. It helps you confidently prepare for level 3, 4, and 5 qualification exams with realistic simulations, instant feedback, and personalized progress tracking — all without internet.
📱 Key Features
Exam Levels: Level 3 (Basic), Level 4 (Advanced), Level 5 (Master)
"Built by an electrician, for electricians! This isn't just a quiz app — it's a professional tool to build confidence and pass Estonia's electrician certification with ease."
📝 What the Full Article Will Cover
- Architecture decisions: Why offline-first? How to structure an app with 1000+ questions?
- Question management: Handling 1064 questions across 3 levels and 3 languages
- Smart Practice Mode: Implementing randomized answers and adaptive learning
- Progress tracking: Building independent knowledge batteries for each level
- Performance optimizations: Keeping the app fast with large datasets
- GDPR & privacy: Zero data collection, all local storage
- Lessons learned: What I'd do differently next time
📖 While you wait, read these:
• How I spent a night fighting Mailchannels and fixed it with Resend
• Behind the Build: Creating Personality Compass
🔔 Want to know when the article is out?
Follow me on LinkedIn or check this space. I'll announce when the full technical deep dive is ready.