ClearCaff: Caffeine Tracker

CodeCrest Solutions

Contains adsIn-app purchases

About this app

How long does caffeine stay in your system?

ClearCaff is an offline-first caffeine tracker and coffee tracker that estimates active caffeine using a standard half-life model. Log coffee, tea, cold brew or energy drinks, follow the caffeine decay curve, and estimate when you may reach your sleep-ready threshold.

SEE YOUR CAFFEINE TIMELINE

• Estimate active caffeine in real time
• View a smooth caffeine half-life graph
• See your estimated sleep-ready time
• Plan a practical coffee cutoff before bed

LOG DRINKS IN SECONDS

• Use quick presets for espresso, cold brew, green tea and energy drinks
• Record caffeine amount, serving size and time
• Review daily caffeine intake and drinking patterns
• Keep core caffeine tracking available offline

PLAN AROUND YOUR SLEEP

• Set optional caffeine-cutoff reminders
• Explore what-if caffeine simulations
• Optionally compare caffeine timing with Health Connect sleep records

CLEARCAFF PRO

• Create custom drink presets
• Unlock weekly insights and Sleep Lab
• Personalize caffeine half-life settings
• Export PDF and CSV reports
• Configure home-screen widgets
• Remove advertisements

PRIVATE BY DESIGN

Your drink history and caffeine preferences are stored locally on your device. No account is required for core caffeine tracking. Health Connect access is optional and read-only.

ClearCaff also uses third-party services for advertisements, subscriptions, notifications and crash diagnostics, as described in the privacy policy.

IMPORTANT

ClearCaff provides estimates based on user-entered information and a generalized caffeine half-life model. Individual caffeine metabolism varies. ClearCaff is not a medical device and does not provide medical advice, diagnosis or treatment.