IELTS Evaluator
The Problem
IELTS candidates struggle to get accurate, affordable writing feedback. Professional tutors are expensive and slow. There was a clear gap for an AI-powered evaluation tool that gives instant, structured feedback on IELTS writing tasks.
My Approach
I built and launched this as my own product. Next.js 15 with App Router provides fast server-rendered pages and excellent SEO. OpenAI API powers the evaluation engine. Supabase handles auth, user data, and usage limits. AdSense monetization was integrated alongside a subscription model. The entire stack is in production with real users.
Tech Stack
Key Features Built
- AI-powered IELTS writing evaluation with band score estimation
- Task 1 and Task 2 feedback with improvement suggestions
- User authentication and submission history via Supabase
- SEO-optimized pages targeting IELTS preparation keywords
- AdSense monetization and usage-based access limits
Outcome
Live at ieltsevaluator.com with real users in production. Demonstrates full-stack Next.js, SaaS architecture, and AI integration from real daily use — not just tutorial projects.