Caffeine tracker
You drink 2–4 cups a day but have no idea how caffeine timing affects your sleep. OutLast is the caffeine tracker that logs every cup, tracks your cutoff time, and connects your coffee habit to your actual sleep quality.
Free to use · No credit card · 2 sec to log
Also track: Sleep · Fasting · Supplements · Hydration · Workouts · Meditation
The problem
You have no idea what time your last caffeine is each day — or how it correlates with poor sleep nights
Caffeine's half-life means that afternoon coffee is still active at bedtime, but you'd never know without data
You blame stress, screens, or your mattress for bad sleep when caffeine timing might be the real culprit
OutLast logs every cup of coffee and tea, tracks your daily cutoff time, and shows you exactly how caffeine timing affects your sleep quality
How it works
One tap per cup. Record each coffee, tea, or caffeinated drink as you have it. Build a complete daily caffeine timeline in seconds.
Your caffeine tracker shows when your last cup was each day. Over time, you’ll see a clear pattern between late caffeine and poor sleep.
OutLast tracks your sleep alongside your caffeine logs. Compare early-cutoff days vs. late-caffeine days and see the difference in your own data.
What you get
Log any coffee, tea, or caffeinated drink with a single tap. Time-stamped automatically so you always know exactly when you had it.
See your last caffeine time alongside your sleep data. Discover your personal cutoff time — the point where caffeine stops disrupting your sleep.
Track how many cups you have each day. Spot patterns like weekday overconsumption or weekend changes. Stay within recommended limits.
OutLast tracks your energy throughout the day alongside caffeine. See whether that third cup actually helps — or just disrupts your sleep later.
The science
What people say
“I had no idea my 2pm coffee was the reason I couldn’t fall asleep before midnight. After moving my cutoff to noon, I’m falling asleep 40 minutes faster. The data was right there once I started tracking.”
“I was drinking 5 cups a day and blaming my phone for bad sleep. OutLast showed me the real pattern — my worst sleep nights always followed late-afternoon coffee. Cut to 3 cups before noon and sleep improved immediately.”
“The caffeine cutoff tracking is genius. I can literally see in my data that days where I stop by 1pm, I get 45 more minutes of sleep on average. No sleep app ever showed me that connection.”
Questions
Every cup of coffee is a data point. Log your caffeine, track your cutoff time, and finally see the connection between that afternoon coffee and your restless nights.
Free to use. No credit card. Takes 30 seconds to start.
Start tracking caffeineFree to use · No credit card · Takes 2 seconds