Comparison

Caffeine Tracker vs HydroFoo

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

Head to head
About

Caffeine Tracker

This app helps you track your caffeine intake and understand its impact on your sleep, focus, and energy levels. It features a comprehensive database of drinks, real-time half-life calculations, and personalized insights to help you manage your consumption.

Highlights
  • Instant caffeine logging for various drinks
  • Real-time caffeine half-life calculator
  • Sleep impact analysis
  • Apple Watch companion app
  • Caffeine reduction goals
  • Smart reminders
  • Widget support
Features
Read full description

Track your caffeine intake and understand how it affects your sleep, focus, and energy with MoonLatte — the smart caffeine tracker for iPhone and Apple Watch. HOW IT WORKS Log Your Caffeine Quickly log coffee, espresso, tea, matcha, energy drinks, soda, and pre-workout supplements. Our caffeine database covers hundreds of drinks with accurate caffeine content per serving. Half-Life Visualization See exactly when caffeine leaves your system. MoonLatte calculates caffeine half-life in real-time, showing you the optimal time to stop drinking coffee for better sleep. Sleep & Focus Impact Understand how your caffeine intake affects your sleep quality and daily focus. Get personalized insights based on your consumption patterns and sleep schedule. Apple Watch App Track caffeine directly from your wrist. Quick-log your favorite drinks, view your daily caffeine balance, and get alerts when it's time to switch to decaf. Reduce & Quit Caffeine Set caffeine reduction goals and track your progress. Whether you want to cut back on coffee, quit energy drinks, or find your optimal caffeine balance — MoonLatte helps you get there. Smart Reminders Get notified when your caffeine levels are high before bedtime. Set custom reminders to log your drinks and stay within your daily caffeine limit. KEY FEATURES - Instant caffeine logging for coffee, tea, espresso, matcha, energy drinks, soda - Real-time caffeine half-life calculator and metabolism tracker - Sleep impact analysis and bedtime caffeine alerts - Apple Watch companion app for wrist-based tracking - Caffeine withdrawal timeline and reduction goals - Beautiful charts showing daily, weekly, and monthly caffeine trends - Caffeine content database for hundreds of popular drinks - Widget support for quick caffeine overview PURCHASE INFORMATION MoonLatte offers a Lifetime purchase option for full access to all premium features. This is a one-time purchase — no subscriptions. Privacy Policy: https://moonlatte.app/privacy Terms of Use: https://moonlatte.app/terms

About

HydroFoo

Features
Read full description

HydroFoo helps you build a real hydration habit with fast logging, clear progress, and a clean experience across iPhone and Apple Watch. Core features Quick water logging with ounces or milliliters Daily goals, streak tracking, and progress history Custom drink presets for one tap entry Apple Health sync for hydration data Voice logging support Home Screen and Lock Screen widgets Pro access Some features require HydroFoo Pro. Subscription and purchase details HydroFoo Pro Monthly is a 1 month auto renewing subscription. Price is $1.99 per month in the United States. Price may vary by country or region. Payment is charged to your Apple Account at confirmation of purchase. Subscription renews automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in Apple Account settings after purchase. Restore Purchases is available in the app. Languages supported English, Spanish, French, Hindi, Arabic, Simplified Chinese. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://garrettmichae1.github.io/WaterFooiOS/#terms Privacy Policy https://garrettmichae1.github.io/WaterFooiOS/#privacy

Screenshots

Caffeine Tracker4 screens
HydroFoo4 screens

Verdict

The call

Caffeine Tracker and HydroFoo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 Tracker sells 3 in-app purchases, starting at $2.99 per 7 days and HydroFoo sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Caffeine Tracker versus HydroFoo: the parameters behind the verdict, then further details
ParameterCaffeine TrackerHydroFoo
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS18.217.0 — better
Further details — not scored
Size20 MB20 MB
Age rating4+4+
DeveloperPawel KarniejGARRETT MICHAEL WOODSIDE

In-app purchases

3 purchases

Caffeine Tracker

Subscriptions2
  • MoonLatte Weekly$2.997 Days
  • Moon Latte Yearly$9.991 Year
One-time1
  • Lifetime Premium Access$19.99
2 purchases

HydroFoo

Subscriptions1
  • HydroFoo Pro Monthly$1.991 Month
One-time1
  • HydroFoo Pro Lifetime$12.99

Questions

Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Is HydroFoo free?
HydroFoo is free to download, with in-app purchases available.
Do Caffeine Tracker or HydroFoo have ads?
Neither Caffeine Tracker nor HydroFoo shows ads.
Which is updated more often, Caffeine Tracker or HydroFoo?
Caffeine Tracker ships an update every 2 months, and HydroFoo every 2 months. Most recently, Caffeine Tracker was updated on October 7, 2026 and HydroFoo on October 25, 2026.

Other comparisons