Comparison

Ducktivity 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

Ducktivity

Read full description

Welcome to Ducktivity, where fitness and fun meet in an exciting, duck-driven adventure! Our unique app is designed to help you stay motivated and achieve your daily activity goals, such as running or walking, by turning your routine into an engaging virtual duck rescue mission. How Ducktivity works: 1. Open the in-app map and place your virtual ducks at a specific location, setting a time for when you'll pick them up. 2. Visit the chosen location within the time frame you specified to save the ducks and return them to your flock. 3. If you fail to pick up the ducks in time, they will be lost forever. By introducing an element of fun and challenge, Ducktivity helps you stay committed to your fitness goals, making your daily activities more enjoyable and rewarding. Whether you're a runner, a walker, or simply looking to stay active, our app provides the external motivation you need to keep moving and make your workouts count. Ducktivity's primary purpose is to provide external motivation for establishing routines, such as daily runs or achieving a daily walking distance goal. Our hope is that once you've built a solid routine, you'll no longer need this app. So, what are you waiting for? Download Ducktivity now and let the power of virtual duck collecting inspire you to get moving, stay active, and achieve your fitness goals!

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

Ducktivity4 screens
Caffeine Clock4 screens

Verdict

The call

The clearest difference is iOS requirement: Ducktivity at 13.0 against Caffeine Clock's 16.4. On price, ads, in-app purchases and device support 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. Ducktivity sells 1 one-off in-app purchase and Caffeine Clock sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Ducktivity versus Caffeine Clock: the parameters behind the verdict, then further details
ParameterDucktivityCaffeine Clock
PriceFreeFree
Rating—4.7 (27 ratings) — better
Positive reviews—80.0% of reviews
Number of ratings—27 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size27 MB121 MB
Age rating4+4+
DeveloperMatus LacoANTONIN WINGENDER

In-app purchases

1 purchases

Ducktivity

One-time1
  • 5 Ducks$3.99
2 purchases

Caffeine Clock

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

Questions

Is Ducktivity free?
Ducktivity 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 Ducktivity or Caffeine Clock have ads?
Neither Ducktivity nor Caffeine Clock shows ads.

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