Cefr.app

What impressed me most was the real-time adaptation of the questions and the immediate delivery of results. The certificate gave me a level of insight into my English skills that genuinely surprised me. All told, this absolutely earns a glowing review.

Five stars, no question — you're blazing a trail here, respecting users' time and actually leveraging LLMs to generate questions dynamically based on each response. This is where testing is headed. Keep pushing forward and providing fast CEFR certification for those of us who need it.