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CaffOut

CaffOut

Aug 22, 2026 Health & Fitness
caffeine half-life ios nutrition tracker

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CaffOut

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I kept seeing caffeine apps stop at “you drank 315 mg today.” Useful, but it didn't answer the thing I actually wondered at 4 p.m.: how much might still be hanging around later? So I built CaffOut for iPhone and iPad. It logs each drink, applies a visible half-life estimate per cup, and adds the remaining amounts. I wanted it to feel more like a private coffee journal than a health dashboard. The estimate shows its inputs and formula. Unknown drinks stay incomplete until you enter a caffeine...

Comments (1)

Agustin Vandervort Agustin Vandervort 6 hours ago

whats the metabolism model? half life varies wildly person to person.