Caffeine Clock vs NOCAF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caffeine Clock
This app helps you track your caffeine intake and understand its impact on your sleep. It models caffeine absorption and half-life to provide a clear view of your current and projected levels, allowing you to plan your consumption for better rest.
- Caffeine absorption and half-life modeling
- Real-time caffeine level tracking
- Interactive home screen widgets
- Sleep-aware insights and bedtime planning
- Extensive drink database with custom options
- Daily caffeine threshold alerts
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Track your caffeine and improve your sleep. Caffeine Clock is a caffeine tracker that models absorption and half-life to estimate how much caffeine is in your system throughout the day. Log what you drink or eat, see how levels rise and fall, and plan your last cup so you can sleep with confidence. Accurate tracking with absorption rate Not just totals. Caffeine Clock models how quickly you absorb caffeine and how it declines (half-life), then estimates your level now and later. If you note how long you sipped that cappuccino, the curve updates accordingly. A clear, actionable dashboard An attractive graph shows your current level, projected decline, and how much caffeine you’ll have at any time. Long-press to scrub the timeline and reveal exact values. At a glance, know whether you’re in the clear - or whether another cup will push you past your comfort zone. Interactive Home Screen Widgets Monitor your stats without even opening the app. View your live caffeine curve and current mg count directly on your Home Screen. Need to log a refill? Use the quick-add widget to track your favorites with a single tap - keeping your data accurate with zero friction. Sleep-aware insights Set a target bedtime. If your projected level looks high by then, Caffeine Clock lets you know early—often before you even add a drink—so you can adjust your cut-off and protect tonight’s sleep. Thoughtful onboarding Start strong with a quick setup that captures your preferences and sensitivity. You can fine-tune everything at any time. 200+ drinks, plus your own Choose from a built-in database of coffees, teas, and energy drinks, or create custom drinks with your own sizes and mg. Fast logging means better tracking. Thresholds and gentle alerts Pick a daily caffeine threshold that fits your routine. Get timely reminders before you overdo it and suggestions that keep you on track. Private and fully offline No account, no signup. Your data stays on your device, with an option to transfer locally. Caffeine Clock works fully offline. Anytime, anywhere. Made for everyday routines Whether it’s espresso at 8, tea at 2, or an energy drink before a workout, Caffeine Clock shows how today’s choices affect tonight’s sleep—so you can enjoy what you love without second-guessing it. How it works - Log a drink from the 200+ library or use the quick-add widget. - The app models absorption and half-life to estimate your level over time. - Watch the live caffeine curve and countdown on the dashboard or Home Screen. - Set a bedtime and get informed if you may still be “too caffeinated” by then. Why a dedicated caffeine tracker? Caffeine affects everyone differently. A general health app won’t tell you when a 3 PM latte will still be in your system at 10 PM. Caffeine Clock focuses on one job: timing your intake for better days and better nights. Get started in minutes Install, finish the onboarding, log your first drink, and watch your caffeine curve come to life. Disclaimer Caffeine Clock provides estimates based on published half-life ranges and your inputs. It’s for informational purposes only and is not a medical device or a substitute for professional advice.
NOCAF
This app guides users on a 90-day journey to break free from caffeine. It offers brain rewiring tracking, milestone achievements, daily challenges, guided meditations, and an educational library to support a caffeine-free lifestyle.
- 90-day brain rewiring journey
- Milestone and achievement tracking
- 28-day healthy habit challenges
- Guided meditation and breathing exercises
- Comprehensive education library
- Streak tracking with edit capabilities
- Money saved calculator
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Ready to break free from caffeine? NOCAF is your personal companion on the journey to a caffeine-free lifestyle. Brain Rewiring Tracker • Follow your 90-day journey to rewire your brain • Watch your progress with visualizations • Celebrate milestones along the way • Get real-time streak tracking with detailed time displays Milestone System • Comprehensive achievement tracking for daily, weekly, and monthly progress • Share your achievements directly to social media • Invite friends with personalized referral links • Multiple categories including coffee-specific, energy drink, financial, and general milestones • Popups when you unlock new achievements 28-Day Challenge • Complete daily tasks to build healthy habits • Visual progress tracking with day-by-day completion • Reset and restart functionality for relapses • Achievement tracking to stay motivated • Build a sustainable caffeine-free routine Guided Meditation and Recovery • Interactive breathing exercises with animated meditation sessions • Use meditation when caffeine cravings hit • Track withdrawal symptoms and recovery benefits • Access educational content with recovery strategies Comprehensive Education Library • Expert articles on caffeine addiction • Mindfulness, meditation, and coping techniques • Learn about improved sleep, reduced anxiety, and stable energy • Easy-to-navigate content sections Key Features • Smart streak tracking with edit capabilities • Track and monitor withdrawal symptoms • Instant recognition for daily wins • Money saved calculator (average $6/day saved) • Make and track personal commitments • Reset functionality with guidance for relapses • Context-sensitive tutorials and tips Personalized Onboarding • Tailored setup through a comprehensive questionnaire • Identify caffeine-related mental and physical symptoms • Personalized experience based on your goals • Seamless data backup across devices with Firebase Social and Community Features • Post milestones to social media with one tap • Invite friends with trackable referral codes • Share your journey statistics • Help others start their caffeine-free journey Why Quit Caffeine? • Better sleep quality • Reduced anxiety • Stable energy levels • Improved digestion • Lower blood pressure • Natural stress management • Better hydration • Financial savings Privacy and Security • Secure cloud backup • Offline functionality • Your data stays private • Google and Apple Sign-In support Start your journey to natural energy and better health today. Download NoCaf and take the first step towards a caffeine-free life. Your path to freedom from caffeine starts here. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Caffeine Clock at 4.7 against NOCAF's 3.9. Caffeine Clock also leads on monetization model (free vs freemium) and review sentiment (80% vs 71%). NOCAF's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Caffeine Clock sells 2 one-off in-app purchases and NOCAF sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Caffeine Clock holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 24 and 7 respectively. Written reviews point the same way: 80% of Caffeine Clock's written reviews are positive against 71% of NOCAF's.
Caffeine Clock ships an update weekly, NOCAF every 9 days. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.
| Parameter | Caffeine Clock | NOCAF |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (24 ratings) — better | 3.9 (7 ratings) |
| Positive reviews | 80.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 24 — better | 7 |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 122 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | ANTONIN WINGENDER | Rachit Agarwal |
Customer experience
Caffeine Clock
NOCAF
In-app purchases
Caffeine Clock
- Remove ads$4.99
- Remove Ads$9.99
NOCAF
- Weekly$1.997 Days
- Monthly$3.991 Month
- Unlimited (1 Year)$59.991 Year









