Comparison

Cup Buddy vs Caffeine Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cup Buddy

Track your daily caffeine intake to understand its effects on your body, mind, and sleep. Set personal limits, monitor progress, and receive metabolism forecasts to manage your energy levels and improve your overall well-being.

Highlights
  • Track caffeine intake from over 180 sources
  • Set and adjust daily caffeine limits
  • View caffeine metabolism forecasts
  • Integrates with Apple Health
  • Monthly subscription for full features
Read full description

Have you ever thought about how caffeine affects you? your body? your mind? your sleep? Probably yes, and you know - this effect is pretty dramatic. I realized my addiction to coffee and wanted to regain control of my caffeine intake. That is why I created CupBuddy. First of all, This app helped me properly understand how much caffeine I intake and then reduce it to an acceptable level. Now I feel much better. My sleep improved, like the overall quality of my life. I hope my app will help you too. Just give it a chance. CupBuddy lets you track every shot of your favorite drink and deeply understand how much caffeine comes to your system every day. Set your very own daily caffeine limit and check it every time you about to take one more cup of latte. Adjust your limit every month to see the progress and return to healthier living. Get caffeine metabolism forecast to plan your sleeping schedule, or taking one more cup. CupBuddy knows about more than 180 different caffeine sources from all over the world, and this number will rise with almost every update. If you want to tell CupBuddy about your favorite drink, tweet to @getCupBuddy or send a message to cupbuddy@stukalovtech.com, and CupBuddy will do his best to learn it with the next update. CupBuddy offers optional integration with Apple's Health App so you can exchange caffeine data with it. _______ MORE INFO ABOUT CUPBUDDY SUBSCRIPTION: CupBuddy requires an active subscription to let you record caffeine from all sources via the app, see metabolism forecast(also can get notifications), and edit limit Plans are monthly You'll be billed at the end of the free trial automatically unless you cancel Subscription will auto-renew unless you turn it off in your iTunes account Payment will be charged to iTunes Account at confirmation of purchase You can turn off auto-renew in iTunes You can cancel up to 24 hours before the next period Please review our Terms of Service here: https://istukalov965.wixsite.com/mysite/cupbuddy-tos Please review our Privacy Policy here: https://istukalov965.wixsite.com/mysite/cupbuddy-privacy

About

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.

Highlights
  • 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
Features
Read full description

Track your caffeine and sleep better. See exactly when today's coffee wears off. 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. Tuned to you A quick setup captures your habits and sensitivity, and you can adjust your personal caffeine half-life at any time in Settings, so the curve matches how your body actually clears caffeine. 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 limit that fits your routine, whether that is the commonly cited 400 mg for adults or the 200 mg guideline many people follow during pregnancy. Get timely reminders before you overdo it. Apple Health Send every logged drink to Apple Health so your caffeine sits next to your sleep and the rest of your health data. 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.

Screenshots

Cup Buddy4 screens
Caffeine Clock4 screens

Verdict

The call

The clearest difference is monetization model: Caffeine Clock at free against Cup Buddy's free with in-app purchases. Cup Buddy's advantage is review sentiment (100% vs 80%). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cup Buddy sells 2 in-app purchases, starting at $5.99 per month and Caffeine Clock sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cup Buddy ships an update every 4 days, Caffeine Clock weekly. The most recent releases landed on September 20, 2026 and October 20, 2026 respectively.

Scorecard2 real differences · 8 level
Cup Buddy versus Caffeine Clock: the parameters behind the verdict, then further details
ParameterCup BuddyCaffeine Clock
PriceFreeFree
Rating—4.7 (27 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings—27 — better
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size9 MB121 MB
Age rating4+4+
DeveloperIlia StukalovANTONIN WINGENDER

Customer experience

Cup Buddy

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Caffeine Clock

All ratings27 ratings
Positive92.6%
Neutral3.7%
Negative3.7%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

2 purchases

Cup Buddy

Subscriptions2
  • Unlimited access7 Days trial$5.991 Month
  • Unlimited access for a Year7 Days trial$59.991 Year
2 purchases

Caffeine Clock

One-time2
  • Remove ads$4.99
  • Remove Ads$9.99

Questions

Is Cup Buddy free?
Cup Buddy is free to download, with in-app purchases available.
Is Caffeine Clock free?
Caffeine Clock is free to download, with in-app purchases available.
Do Cup Buddy or Caffeine Clock have ads?
Neither Cup Buddy nor Caffeine Clock shows ads.
Which is updated more often, Cup Buddy or Caffeine Clock?
Cup Buddy ships an update every 4 days, and Caffeine Clock weekly. Most recently, Cup Buddy was updated on September 20, 2026 and Caffeine Clock on October 20, 2026.

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