Love your coffee. Keep your nights.
CaffIQ shows you — in real time and tuned to your body — how each coffee affects tonight’s sleep, and how late you can still enjoy one.
Free · 7-day Pro trial · Your data stays on your iPhone
The question that matters
“Can I still have this coffee — and how late?”
Other apps just count what you’ve already had. CaffIQ looks ahead: from your own metabolism, it works out how late a coffee still leaves your night intact. You decide with full clarity — without giving anything up.
How it works
The science, made effortless
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Your caffeine, in real time
Watch your blood-caffeine level rise and fall, hour by hour — in the app, on your widgets, and in the Dynamic Island.
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Your sleep readiness score
A clear score tells you exactly when to stop to protect tonight’s rest. No guesswork, no 2 a.m. regrets.
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Tuned to your body
Weight, age, sensitivity, smoking, hormones — caffeine’s half-life varies enormously from person to person. CaffIQ computes yours.
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Always a glance away
Home and Lock Screen widgets, Live Activities, and Siri: ask “When can I sleep?” and get an instant answer.
For people who love coffee
Four ways to love your coffee — without losing your nights
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The specialty-coffee lover
You drink for the taste, not the buzz. Keep the ritual — after your cutoff, a great specialty decaf carries it on.
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The performer
Coffee is your fuel. Find your line: how far you can go through the day without wrecking the night.
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The over-caffeinated
Too wired, too often? Finally see what you’re really stacking up — and take back control, without quitting.
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A number to keep
Need to keep caffeine under a threshold? CaffIQ counts your milligrams and tunes the model to your metabolism.
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Your data stays yours
Everything lives on your iPhone. CaffIQ doesn’t track you across apps or websites, and never sells or rents your information.
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Zero deprivation
We never ask you to quit. CaffIQ helps you keep loving good coffee — simply at the right time.
FAQ
Coffee, caffeine & sleep — answered
- Does my afternoon coffee affect my sleep?
- Often yes — afternoon caffeine is frequently still in your system at bedtime, even if you don’t feel it. CaffIQ shows your caffeine level in real time and estimates how much will remain when you go to bed.
- How late can I drink coffee before bed?
- It depends on your body, not a generic rule — caffeine’s half-life varies widely between people. CaffIQ calculates your personal “last cup” time from your weight, age, and sensitivity, so you can enjoy coffee later and still protect your sleep.
- Is there a caffeine tracker tuned to my body?
- Yes — CaffIQ personalizes its predictions with a pharmacokinetic model based on your weight, age, sensitivity and more, instead of one-size-fits-all averages.
- What app tells me when to stop caffeine?
- CaffIQ: a real-time readiness score and a personalized cutoff time — and you can ask Siri “When can I sleep?” for an instant answer.
- Why do I feel jittery or wired after coffee?
- Often it’s the total amount and the timing, not a single cup. CaffIQ shows your caffeine level in real time, so you can see when you’re nearing an amount that leaves you wired — and stay in control without giving up coffee.
- Can CaffIQ help me stay under a daily caffeine limit?
- Yes. CaffIQ counts caffeine in milligrams across coffee, tea, energy drinks and more, and tracks it against a limit you set, tuned to your body. For a medical limit, follow your doctor’s guidance.
- Do I have to quit coffee to sleep better?
- No. CaffIQ is about timing, not quitting. Keep the coffee you love — the app just helps you place it so it doesn’t cost you your night.
- Is CaffIQ free?
- CaffIQ is free to download with core tracking. CaffIQ Pro, with a 7-day free trial, unlocks the full experience — monthly, annual, or a one-time Lifetime purchase.
- Is my data private?
- Yes. Your entries stay on your device and your private iCloud. CaffIQ doesn’t track you across apps or websites and never sells your data.
Love your coffee. Keep your nights.
Free to download, with a 7-day Pro trial.
Download on the App Store