CafOS calculates your personal caffeine cutoff using clinical-grade pharmacokinetic models.
"Trusted by professionals who optimize everything except their coffee"
Generic advice says stop at 2PM. But your cutoff depends on your dose, your sensitivity, and your bedtime.
Safe to sleep by 11:47 PM
Log your intake with one tap.
Follow your personalized cutoff.
Measure your sleep hygiene index.
Good afternoon, Alex
Until optimal metabolic clearance
Optimization begins soon.