TODAY01 / LIVE
0MG
CAFFEINE CONSUMED SINCE MIDNIGHT
LAST 24 HOURS0 MG
MG
Set your personal tracking target. This is not a medical safety threshold.
0MG
Estimated from all logged doses, including previous days
FOR THE CAFFEINE FREAKS // EST. 2026
FUEL HARD.
TRACK
SMART.
No guessing. No losing count. Every can, every scoop, every shot. Logged down to the milligram.
01 / THE NUMBERS
YOUR FUEL REPORT.
LIVE PERSONAL TRACKER
LAST 7 DAYS↗
0MG
TOTAL CAFFEINE LOGGED
ENTRIES TRACKED↗
0HITS
IN THE LAST 7 DAYS
02 / MEET THE FREAKMETER
YOUR FREAKMETER.
How much caffeine could still be in your system? Your FreakMeter models an estimate from what you've logged, not a blood test or sleep prediction.
UPDATED WITH YOUR LOG
FREAKMETER · ESTIMATED REMAINING⚡ LIVE MODEL
PROJECTED DECLINENEXT 12 HOURS · NO ADDITIONAL CAFFEINE
IN 12 HOURS0 MGESTIMATED REMAINING · TAP THE GRAPH OR MILESTONES TO EXPLORE
THE BEDTIME FORECAST// PERSONALIZE
0MG
PROJECTED AT YOUR NEXT BEDTIME
5 HRS
3 HRS · FASTER7 HRS · SLOWER
CHANGES SAVE AUTOMATICALLY ON THIS DEVICE
The default five-hour half-life is an approximation consistent with FDA educational guidance. This simple model assumes caffeine begins clearing immediately and halves at a constant rate. Real absorption and metabolism vary with individual biology, medications and other factors. It does not predict alertness or sleep quality. Use it for awareness, not medical decisions.
03 / THE INTAKE
LOG A HIT.
Pick your poison. Check the label. Own the number.
[ + ADD CAFFEINE ]
★ FREAK FAVORITES0 SAVED
ONE TAP. LOGGED.No favorites saved yet. Pick a product, set your mg, then hit the star to make it a one-tap favorite.
SELECT YOUR FUEL08 OPTIONS
01 / SELECT BRANDYOUR FUEL. YOUR CHOICE.
02 / SELECT FORMULA / TYPECHECK YOUR LABEL
02 / PICK YOUR FLAVORGHOST
COFFEE CAFFEINE = AN ESTIMATE. An 8 oz black coffee is about 95 mg; an espresso shot is modeled at 75 mg, so a latte with two shots is about 150 mg. Cold brew defaults to about 200 mg for 16 oz, based on a common coffee-shop serving; its strength, concentrate dilution and recipes can vary widely. Always edit the mg to match what you actually drank.
Independent, unofficial prototype. Product images and trademarks belong to their owners. Formulas, sizes and caffeine amounts can change. Check the can and edit the amount before logging. Commercial use of product imagery would require appropriate rights.
04 / FREAKSTATS
SEVEN DAYS. ZERO GUESSWORK.
CAFFEINE / MG
THE 7-DAY BREAKDOWN
N/ADaily totals · tap a bar to inspect that day
SELECTED DAYTODAY
CAFFEINE TOTAL0 MG
LOGGED ENTRIES0
05 / THE RECEIPTS
EVERY HIT COUNTS.
RECENT ENTRIESNEWEST FIRST
⚡ SAVE YOUR PROGRESS
BACK IT UP. BRING IT BACK.
Your logs live in this browser, not in a cloud account. Removing the Home Screen app or clearing its website data can permanently erase them. Save a backup to Files or iCloud Drive before reinstalling.
The JSON backup saves all entries, favorites, target, bedtime and half-life setting. Importing a CSV adds past log entries without deleting your current log. Always verify the file is saved on your device.
06 / BUILD THE LINEUP
MISSING YOUR GO-TO?
Don't see your energy drink or pre? Log it with Custom above, then tell us what belongs on the wall.
[ YOU CALL THE SHOTS ]
THE GRIND IS REAL.THE NUMBERS DON'T LIE.