Caffeine Tracker · iPhone
Your 4pm coffee is still awake at midnight.
Hotshot shows you how much caffeine is still in your system — so you can enjoy your coffee, protect your sleep, and cut back when you're ready. All in a single tap.
Quick Add
Track caffeine in a single tap.
Your usual flat white is one tap away. Watch your daily total fill a familiar ring, then glance back across the week to spot your patterns at a glance.
- Quick-add your regulars
- A daily goal ring you actually read
- Your whole week at a glance
Sleep Impact
See your caffeine. Protect your sleep.
Hotshot models how much caffeine is still in your system using your personal half-life, then tells you what'll be left at bedtime and when you'll be ready to sleep. That 4pm espresso suddenly makes a lot more sense.
- A live caffeine-over-the-day timeline
- Estimated caffeine at bedtime
- Your sleep-ready time
Drink Library
Every drink, ready to log.
From a double espresso to a matcha latte to your favourite energy drink — pick from an extensive built-in library, search in a second, and fine-tune the caffeine for any cup.
- An extensive built-in library
- Coffee, tea, energy & more
- Adjust the mg on any drink
Made for you
Tuned to your body.
Set your bedtime, your daily limit and your caffeine half-life. Just enough settings to make the numbers truly yours — and nothing you don't need.
- Your personal caffeine half-life
- A daily caffeine goal
- Bedtime & sleep-safe threshold
Private by design
Your data never leaves your phone.
Hotshot stores everything on-device with HealthKit. No accounts, no analytics, no advertising, no data collection of any kind. The only person tracking your caffeine is you.
Five stars, and climbing.
From the App Store
“It's a great app for caffeine monitoring.”
“Hotshot has helped me to cut back on caffeine, ensuring I switch to decaf just before lunch to avoid a restless night.”
Done beats perfect
The tracker you'll actually keep using.
Most caffeine apps drown you in thousands of options and chase perfect accuracy. Hotshot does the opposite: fast, friendly and good enough to stick with. Because the best caffeine tracker is the one you'll still be using next week — right up until the day you don't need it.