Comparison

Caffeine App vs Water Tracker CoffeeWatch

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

Head to head
About

Caffeine App

Track your caffeine intake from various beverages and monitor your hydration levels. Visualize your caffeine curve over 24 hours and receive notifications for your optimal sleep time. Integrates with Apple Health and Apple Watch for seamless logging and data syncing.

Highlights
  • Log caffeine from coffee, tea, and energy drinks
  • Visualize 24-hour caffeine curve
  • Calculate optimal sleep time
  • Track daily water intake
  • Apple Watch logging and complications
  • Apple Health integration
  • iCloud sync
Features
Read full description

How much caffeine is still in your body? When can you fall asleep? Are you drinking enough water? Caffeine App gives you the answers — at a glance. Caffeine Tracking • Log every coffee, tea, espresso, energy drink, or mate • Scrollable 24-hour timeline shows your caffeine curve • See how much caffeine is currently in your system • Create custom drinks with individual caffeine amounts Optimal Sleep Time • Caffeine App calculates when you're ready to sleep • Get notified when your sleep time is reached • Set your personal caffeine limit and desired sleep time Water Tracking • Track your daily water intake with personalized goals • Customizable reminders to stay hydrated • Beautiful charts for caffeine and water consumption Apple Watch • Log caffeine and water right from your wrist • Daily charts for caffeine and water • Complication shows your optimal sleep time More Features • Apple Health integration — caffeine and water entries stay in sync • iCloud sync across all your devices • Dynamic Type for optimal readability • URL scheme support

About

Water Tracker CoffeeWatch

Monitor your caffeine intake and understand its impact on your body. Visualize your 24-hour metabolism curve and receive personalized insights to optimize focus and sleep.

Highlights
  • Real-time caffeine monitoring
  • 24-hour metabolism curve
  • One-tap drink logging
  • Caffeine trends and history
  • Sleep-friendly reminders
  • Apple Watch integration
  • Widgets and Lock Screen info
Features
Read full description

CoffeeWatch is a caffeine tracking app designed for people who love coffee and also care about how their body feels. For the first time, you can truly see your caffeine level in your body and your 24-hour metabolism curve—no more drinking by gut feel, no more pushing through on sleepless nights. Use data to protect your clarity, focus, and sleep. #Why We Built This App We’re a group of people who’ve survived countless late nights — powered by coffee. A “wake-me-up” cup in the morning, a “keep-me-going” cup in the afternoon, and a “let-me-finish-this-deck” delivery coffee at night. Some days it took five or six cups just to “look okay” in a meeting. But instead of feeling more stable, we ended up with: • Faster heartbeats, trembling hands, anxiety • Feeling more awake at night but sleeping lighter • And waking up even more tired — only to drink again It’s a loop: fatigue → more caffeine → worse sleep → more fatigue. We realized caffeine itself isn’t the enemy — The real problem is that we don’t know our current state. • How much caffeine is still in my body right now? • If I drink this cup, will I still be able to sleep tonight? • Am I already over my safe limit? So we made CoffeeWatch. --- # Features 1. Real-Time Caffeine Monitoring • See exactly how much caffeine (mg) is in your body right now • 24-hour metabolism curve • Clear-out countdown — how long until most caffeine is metabolized • Bedtime residual forecast — how much caffeine remains at your usual bedtime • Sleep-risk hints such as “You might fall asleep later tonight — consider skipping this cup” 2. One-Tap Drink Logging • Built-in drinks: Americano, Latte, Espresso, Cold Brew, Milk Tea, Energy Drink, Tea, Cola, Hot Cocoa, and more • Quick-select common sizes • Manually enter your volume (ml / oz) — caffeine is auto-calculated • Save your favorite drink for one-tap add • Each log instantly updates your timeline and metabolism forecast 3. Trends & History • View daily / weekly / monthly / yearly caffeine trends • Total intake, daily average, over-limit days • “Caffeine-free days” — when your body truly rested • See which drinks contribute most to your intake 4. Sleep-Friendly Reminders • About six hours before bedtime: “Caffeine is still active — tonight may be harder to fall asleep.” • Sleep-readiness states: Calm / Alert / Over-stimulated 5. Deep Apple Watch Integration • Record directly from your wrist — no phone needed • Complications show: – Current in-body caffeine – Metabolism curve – Bedtime residual • Your watch becomes both a quick-log tool and a real-time status indicator 6. Widgets & Lock Screen Info • Show key numbers right on your iPhone Home, Lock, or Standby screens: – Current caffeine level – Total consumed today – Distance from your comfort limit • Pin your go-to drink (e.g., “16 oz Latte”) to a widget for one-tap logging 7. Live Activities / Dynamic Island • Your iPhone’s Dynamic Island continuously displays caffeine level and clear-out countdown • Apple Watch shows real-time status as well --- # Apple Ecosystem Integration • Full support for iOS 26 / watchOS 26 • Liquid Glass UI — clear information, non-intrusive, no panic-inducing visuals • Apple Watch app & complications — check status or log a cup with a simple wrist raise • iOS 26 widgets — available on Home Screen, Lock Screen, and StandBy Mode • HealthKit integration — your health data is used only to help you understand yourself. You’re in full control and can revoke access anytime. --- # Coming Soon • AI Drink Recognition — Snap a photo of your beverage, and CoffeeWatch automatically detects type, volume, and typical caffeine strength to draft a log for you. • Caffeine & Performance Insights — learn how precise timing and dosage can safely enhance training and endurance. --- Privacy Policy: https://coffeewatch.app/privacy-policy Terms of Use: https://coffeewatch.app/terms-of-use Email: support@coffeewatch.app

Screenshots

Caffeine App4 screens
Water Tracker CoffeeWatch4 screens

Verdict

The call

The clearest difference is update cadence: Water Tracker CoffeeWatch at every 5 days against Caffeine App's monthly. Caffeine App's advantage is ratings volume (340 vs 7). On price, rating, review sentiment and ads 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. Caffeine App sells 1 one-off in-app purchase and Water Tracker CoffeeWatch sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Caffeine App against 4.6 for Water Tracker CoffeeWatch. That said, the two scores are not equally well evidenced: Caffeine App has 340 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 74% of Caffeine App's written reviews are positive against 75% of Water Tracker CoffeeWatch's.

UpkeepUpdate frequency

Caffeine App ships an update monthly, Water Tracker CoffeeWatch every 5 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Caffeine App versus Water Tracker CoffeeWatch: the parameters behind the verdict, then further details
ParameterCaffeine AppWater Tracker CoffeeWatch
PriceFreeFree
Rating4.6 (340 ratings)4.6 (7 ratings)
Positive reviews73.7% of reviews75.0% of reviews — better
Number of ratings340 — better7
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple Watch, Vision ProiPhone, iPad, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size17 MB81 MB
Age rating4+4+
DeveloperOleg MuellerShutong Technology

Customer experience

Caffeine App

All ratings340 ratings
Positive92.1%
Neutral5.9%
Negative2.1%
Written reviews76 reviews
Positive73.7%
Neutral14.5%
Negative11.8%

Water Tracker CoffeeWatch

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

Bugs and requests

Caffeine App

Reported bugs

10 issues
  • Sleep ready time displays current time instead of predicted sleep time
  • Cannot rename custom amounts until after adding them
  • Newly added custom amounts appear at bottom of list
  • Health app data from third-party apps not syncing
  • All presets missing in some versions
Show 5 more
  • HealthKit integration broken in certain versions
  • Shift work time differential not processed correctly
  • Outdated caffeine data for Dunkin Donuts beverages
  • Graphics update delays causing app unresponsiveness
  • Watch app loading issues on initial launch

Requested features

20 requests
  • Toggle option to disable bar chart visualization
  • Taller graph display area with scrolling capability
  • Personalization based on body weight and metabolism
  • Ounce-based measurement options for drinks
  • Multi-day and historical trend analysis
Show 15 more
  • Siri Shortcuts integration for automated logging
  • Today widget for quick access
  • Mood and energy level tracking
  • More granular unit adjustments (fractions of shots)
  • Expanded beverage library (Monster Java, Sheetz coffee, K-cups, etc.)
  • Custom coffee group creation without preset requirements
  • Apple Watch complications showing current caffeine levels
  • Watch app graph visualization
  • Headache threshold level tracking
  • Future-looking graph projections
  • Water consumption tracking integration
  • Ability to rename custom amounts before adding
  • Custom amounts appearing at top of list instead of bottom
  • Shift work schedule support
  • Average daily caffeine statistics

Water Tracker CoffeeWatch

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Caffeine App

One-time1
  • Unlock Pro$4.99
3 purchases

Water Tracker CoffeeWatch

Subscriptions2
  • Caffeine Tracker Premium Week3 Days trial$1.997 Days
  • Coffee Watch - Premium Year$29.991 Year
One-time1
  • Caffeine Tracker LifetimeMembership$39.99

Questions

Is Caffeine App free?
Caffeine App is free to download, with in-app purchases available.
Is Water Tracker CoffeeWatch free?
Water Tracker CoffeeWatch is free to download, with in-app purchases available.
Which has better reviews, Caffeine App or Water Tracker CoffeeWatch?
Caffeine App and Water Tracker CoffeeWatch are both rated 4.6 out of 5 on the App Store, from 340 and 7 ratings respectively.
Do Caffeine App or Water Tracker CoffeeWatch have ads?
Neither Caffeine App nor Water Tracker CoffeeWatch shows ads.
Which is updated more often, Caffeine App or Water Tracker CoffeeWatch?
Caffeine App ships an update monthly, and Water Tracker CoffeeWatch every 5 days. Most recently, Caffeine App was updated on October 15, 2026 and Water Tracker CoffeeWatch on October 8, 2026.

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