ThinkLeft

ThinkLeft

Know when your brain is sharp. Track fatigue.

2 followers

Every decision drains mental energy — but most people have no idea when their brain is actually running on fumes. ThinkLeft gives you a real-time 0–100 cognitive fatigue score based on 4 signals: decisions made, time of day, fidgeting, and app hopping. After a few days it calibrates to YOUR baseline — so you see your personal peak hours and afternoon slump, not a generic average. Free. iPhone only.
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