Focus One Task is a simple productivity app built around one idea: You can only focus on one task at a time. No task lists. No settings. No accounts. No subscriptions. No ads. Just one task on your screen. You enter a task, focus on it, complete it, and start again. I built this because I was tired of complex productivity apps that try to do everything. I wanted something minimal that actually helps me start. The app works fully offline and costs €0.99 as a one-time purchase.