Show HN: KIIP Study – exam practice for Korea's immigration test (16 languages)

Hi HN — maker here. I built KIIP Study for people preparing for Korea's Social Integration Program (KIIP) assessments. I wanted wrong answers to come with explanations that learners could understand in their own language. The app has original practice questions modeled on the KIIP assessment formats, including the placement, intermediate, and comprehensive assessments. Each answer is explained in 16 languages, and the vocabulary is based on the official KIIP textbooks. It's available on iPhone (no iPad support yet) and Android. The first 20 questions are unrestricted; after that, the free tier has daily limits, with an optional subscription. KIIP Study is not affiliated with the Ministry of Justice. The questions are written to match the assessment formats; they are not official questions or past exam papers. Happy to answer questions about the KIIP assessment system or the app.