Grindset.

Grindset. とは？

Most productivity apps feel like work. Grindset feels like a game. Earn XP for tasks, build streaks, and watch your room evolve from a dorm to a penthouse as you level up. Focus timer with ambient sounds, AI-scored quests, a global leaderboard, and skill trees — all free. Built for students and anyone who knows what they need to do but struggles to actually start.