Second Brain is the first AI productivity assistant that thinks proactively for you. Most apps wait for you to organize yourself. Second Brain does the opposite — it learns your energy, builds your day automatically, and gives honest feedback every evening. - Energy-based planning - AI Morning Briefing powered by Claude - Brutally Honest Daily Report - Weekly personal letter from AI - Tasks, habits, goals, focus — all in one place Free plan + Pro at £9.99/month.