Finished your coffee? Its caffeine isn’t done yet.
Log your caffeine. See what may remain at bedtime.
Caff Conscious is a caffeine tracker for iPhone and Android. Log coffee, tea, and energy drinks, then estimate how much caffeine could still be active at bedtime.
Logging is free. Your caffeine log and health information are stored on your device.
Move the coffee later in the day and watch what is left at bedtime.
15 mg of a 95 mg coffee may still be active at 11:00 PM.
An illustration of one drink with a five-hour half-life, not a measurement. Try your own drink
Log it. See it at bedtime.
Caff Conscious turns the drinks you log into an estimate for tonight. Deeper pattern review is there only if you want it.
The drink you actually had.
Check the caffeine amount and its source, the time, and whether you drank it at once or sipped it. Every estimate starts with a checked log.
What may still be active at bedtime.
Today estimates how much caffeine may remain active at the bedtime you set, and labels it as an estimate, not a measurement.
Weekly Insights.
Pro adds deeper pattern review if you want it. Logging stays free.
Free to log, easy to fix.
Your usual drinks, manual entry, a labeled estimate when details are missing, saving a drink for later, edit, undo, recovery, and basic watch logging are all free.
- On your phone
- A logged drink stays visible with Undo and Edit. If a log needs attention, the phone shows you how to fix it.
- On your watch
- Queued means your phone has not saved the log yet. Logged appears only after the phone confirms it, and timing can vary.
Your log is not the product.
Your caffeine log and health information are stored on your device. Drink lookup, purchases, and optional diagnostics use outside services as described in the privacy policy.
Stays on your device
- Your caffeine history and settings
- Health-store data and pattern analysis
- Your active-caffeine and bedtime projections
Only when a feature needs it
- Search terms or barcodes for drink lookup
- An app-scoped identifier and receipt data for purchases
- Optional diagnostics without your log or health content
Start with a drink. Explore the estimate.
Caffeine half-life calculator
Enter one drink and a bedtime. See what changes when you adjust the timing or half-life.
How long does caffeine last?
Follow a worked timeline and understand what a half-life estimate can tell you.
Caffeine before bed
Compare earlier and later drinks, with research context and clear limits on the estimate.
See what’s still with you.
Before your next cup, download Caff Conscious. Logging is free.