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The smartest way to log every espresso, V60, AeroPress, cold brew or matcha — dial in your perfect cup, track your caffeine, and predict your sleep.
Mindful Coffee is a beautifully designed iOS app that combines a full Brew Journal (espresso, V60, AeroPress, Chemex, French press, moka, cold brew, tea, matcha, Gong Fu) with smart caffeine and sleep tracking. Capture grind, dose, ratio, time, temperature and rating in one elegant flow, see exactly when caffeine will clear your system for quality sleep, and understand your body's natural cortisol rhythm.
Built with Apple's stunning Liquid Glass design language, Mindful Coffee feels right at home on your iPhone with its modern translucent interface and buttery-smooth animations.
Part of the Mindful Apps family, alongside Mindful Body.
Most caffeine trackers just count milligrams. Most brew apps just hold recipes. Mindful Coffee does both — the only iOS app that joins a full Brew Journal with a personal-metabolism caffeine model and on-device sleep prediction. Whether you're chasing the perfect espresso shot, dialing in a V60 pour-over, or simply trying to sleep better tonight, this app gives you the insights you need.
- Apple Watch Complications — Caffeine Now and Bedtime Prognosis on every modern face (Modular, Infograph, Smart Stack).
- Tap-to-Log on Watch — tap a complication to log your default drink in one screen, fine-tune mg with the Digital Crown.
- "Hey Siri, log a coffee" — instantly log your default drink without opening the app.
- Cortisol-Window Alerts — a gentle nudge when your cortisol drops and caffeine helps most. Quiet hours respected, max 2/day, smart-skipped if you just logged a drink.
- Smart Stack Relevance — your widget surfaces at the right moments (morning Best window, near bedtime if still wired).
- Default Drink Setting — one source of truth used by Siri, the watch, and notifications.
- Tap the Cortisol Chart to see today's caffeine timing windows (Best / OK / Avoid).
- Mindful Body Companion — caffeine syncs via Apple Health to view alongside body metrics.
👉 See the FAQ for setup walkthroughs.
- Log Every Brew — Espresso, V60, AeroPress, Chemex, French press, moka pot, cold brew — plus tea, matcha and Gong Fu. Capture grind, dose, ratio, time, temperature and rating in one elegant flow.
- Brew Guide — Built-in recipes for every method. Tap to start, or save your own perfect cup.
- Smart Suggestions — Tweak grind, time and temperature based on your past brews. Dial in faster, waste fewer beans.
- Brew Analytics — Average rating, best brew, and what "dialed-in" really means for you.
- Live Timer — mm:ss precision with a dedicated cold brew picker and Gong Fu support.
- Tea, Done Right — Smart caffeine estimates per leaf and method (green, black, oolong, white, herbal, matcha).
Track Smarter, Sleep Better
- Daily Logging Streaks - Stay motivated with visual streak counters that celebrate your consistency
- Caffeine-Free Day Tracking - Log intentional caffeine-free days to maintain your streak while taking mindful breaks
- Sleep Insights Card - See last night's sleep duration and caffeine impact at a glance
- Grouped History View - Browse your consumption history with the current month expanded and past months neatly summarized
Intelligent Caffeine Tracking
- One-Tap Logging - Record coffee, tea, energy drinks, and custom beverages instantly
- Smart Sorting - Sort your drink list by "Last Used" or "Most Used" for faster logging
- Real-Time Sleep Prediction - Know exactly when you'll be ready for quality sleep based on your intake
- What-If Simulator - Preview how another drink would affect your sleep time before you consume it
Personalized to Your Body
- Personal Metabolism Quiz - Answer guided questions to calibrate sensitivity, half-life, and sleep thresholds
- AI Insights (Pro) - Get personalized caffeine commentary powered by Apple Intelligence. Context-aware messages adapt to your energy levels, time of day, and sleep patterns - all processed entirely on-device. The AI research foundation is based on the JudgeGPT project. (Requires iPhone 15 Pro or iPhone 16 series, iPad Air/Pro with M1+, iPad mini with A17 Pro, or Mac with Apple Silicon, running iOS 18.1+, iPadOS 18.1+, or macOS 15.1+)
- Cortisol Rhythm Modeling - Visualize your body's natural energy curve and optimize caffeine timing
- Sleep Correlation Analysis - Discover how caffeine levels affect your actual sleep duration using Apple Health data
Home Screen & Lock Screen Widgets
- Caffeine at a Glance - See your current caffeine level, daily intake, and predicted sleep time right on your Home Screen
- Lock Screen Widgets - Circular, rectangular, and inline styles for quick caffeine checks without unlocking
- Quick Log from Widget - Log your most recent or most-used drink with a single tap directly from the Home Screen
- Widget Customization (Pro) - Personalize Quick Log buttons and choose modern widget styles like Midnight, Warm Latte, Focus Blue, and Forest
- Medium Widget - Shows your top drinks for instant one-tap logging
Seamless Apple Integration
- HealthKit Sync - Automatically log caffeine to Apple Health and import sleep data for deeper insights
- Import from Other Apps - Bring in caffeine data from third-party apps via HealthKit
- iCloud Sync - Seamlessly sync your caffeine data across iPhone, iPad, and Mac
- CSV Export - Full data ownership with complete history export
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Visualize your caffeine decay curve alongside your body's natural cortisol rhythm. The intelligent assistant provides personalized recommendations for optimal caffeine timing. 
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Analyze how your caffeine intake affects sleep quality across different consumption levels. Track correlations between daily caffeine and sleep duration with personalized thresholds. 
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Log your coffee, tea, or energy drinks instantly. See real-time predictions of how each beverage will affect your sleep readiness before you drink it. 
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Customize the app to match your unique caffeine metabolism. Adjust sensitivity, half-life, sleep thresholds, and cortisol parameters for precise tracking tailored to your body. 
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- Mindful Body — Body composition tracker with HealthKit, iCloud sync, progress photos & goal tracking
- Trackless Links — Safari extension for tracker removal from URLs
Take control of your caffeine habits and sleep better tonight:
Visit the Official Website - Learn more about features, the science behind it, and latest updates
The cortisol modeling feature is grounded in established research from chronobiology and longevity science. For a detailed look at the underlying science, see the Research Background.
Interested in research collaboration? If you're a researcher or student working in chronobiology, sleep science, or related fields, reach out at support+mindfulcoffee@alexloth.com.
@software{Loth2025MindfulCoffeeApp,
author = {Loth, Alexander},
title = {Mindful Coffee: Caffeine Log & Cortisol Rhythm},
year = {2025},
version = {5.6},
publisher = {Alexander Loth},
url = {https://apps.apple.com/us/app/mindful-coffee-tracks-caffeine/id6742878005}
}Your data stays on your device — or syncs securely via your personal iCloud account. Mindful Coffee stores all consumption data locally using SwiftData, with optional iCloud sync across your Apple devices. HealthKit access requires your explicit permission following Apple guidelines. All calculations, analysis, AI insights, and modeling run entirely on-device - nothing is ever sent to a server.
Read the full Privacy Policy.
Questions about caffeine science, app features, or troubleshooting? Check out the comprehensive FAQ:
Also available in: Deutsch | Español | Français | 日本語 | 简体中文
Mindful Coffee is fully localized in English, German, Spanish, French, Japanese, and Simplified Chinese.
README in other languages: Deutsch | Español | Français | 日本語 | 简体中文
Help make Mindful Coffee even better:
- Report a Bug: Open an Issue
- Suggest a Feature: Open a Feature Request
Brew better. Sleep smarter. Feel your best with Mindful Coffee.