Here’s a natural first comment that should work well on Product Hunt: > I built Caffeine Lens because I wanted an answer to a simple question: “I had coffee a few hours ago—how much caffeine is still in my body?” > Most caffeine trackers focus on how much you consume. I wanted to go a step further and make the *remaining caffeine* easier to understand, while keeping the experience simple and calm. > This started as a small side project and evolved into a full caffeine tracker with 500+ drinks, caffeine decay estimates, sleep insights, trends, hydration reminders, and cloud sync. > I’m launching it on Product Hunt to get feedback from people who drink coffee, tea, or energy drinks regularly. What’s the one thing you’d want a caffeine tracker to tell you? ☕ > I’d genuinely love your feedback—good, bad, or “please don't make me give up coffee.” 😄

Caffeine Lens

Track. Understand. Balance.

Track. Understand. Balance.