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
Trends
Every Monday, your week in one screen.
Hotshot adds up the week you’ve just had — how much you drank, when you drank it and how that compares with the week before — then picks out one thing worth trying next. Not a wall of charts. One focus.
- A weekly report, ready every Monday
- Your day-by-day rhythm, and how it compares with the week before
- One clear thing to try next week
- Share your week as a card
Weekly report
7/7 days logged
18% less caffeine than the week before
Next week
Bring the last cup forward
Caffeine was still elevated near bedtime on 3 days. Try finishing your final drink an hour earlier.
Caffeine-free days
The days you skip it count too.
Had a day off the coffee? Mark it, and Hotshot makes a small fuss of you for it — then counts it in your weekly report, so a clean day reads as something you did rather than a gap in the data.
Private by design
Your data never leaves your phone.
Every drink you log is written straight into Apple Health as a Dietary Caffeine sample — kept on your iPhone, alongside the rest of your health data, under your control. There are no accounts, no servers of ours, no third-party analytics and no advertising. The only person tracking your caffeine is you.
Because it’s Apple Health, your caffeine sits next to your sleep and your workouts, and any other app you trust can read it. Hotshot asks for one thing and one thing only: Dietary Caffeine.
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.