Japanese Conjugation Drill

A mistake-driven drill site for the conjugations you actually keep getting wrong

Problem

Japanese learners understand conjugation rules on paper but still hesitate in practice. Typical drills treat everyone the same and don't remember which forms you keep missing, and there's no no-signup site you can pick up on phone or desktop.

Solution

A conjugation drill site focused on verbs and adjectives: choose the forms to practice (te-form, nai-form, potential, etc.), and the system tracks your frequent mistakes and serves them more often. No registration required and works across devices.

Users

Beginner-to-intermediate Japanese learners who want to reinforce conjugations in spare moments

MVP

Select conjugation forms to practice; randomized questions with instant feedback; locally track wrong answers and weight them higher; no signup, progress stored locally; responsive on mobile and desktop;

Revenue

Free core features; subscription for cloud sync, error analytics and custom word lists; or a one-time advanced question pack

Why now

Language learning remains a wide-open niche for indie devs, LLMs can generate quality questions and explanations cheaply, and it needs no platform distribution, making it ideal for solo validation.