Caffeine Tracker vs HalfCaff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
HalfCaff
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HalfCaff tracks your caffeine intake and shows exactly how much caffeine is in your body right now. Using scientifically-based half-life calculations, HalfCaff answers the one question every coffee lover asks: "Can I have another cup and still sleep tonight?" "○○mg remaining" — Based on your bedtime threshold and the FDA daily limit (400mg), see exactly how much more you can drink at a glance. Features: - Real-time body caffeine level with circular gauge - Remaining allowance display ("○○mg OK to drink") - 24-hour caffeine decay curve - 70+ drink presets (Starbucks, Doutor, Tully's official data) - Home screen widgets (Small & Medium) - Dynamic Island & Live Activities - Personalized half-life based on your caffeine sensitivity HalfCaff Pro unlocks: - Home screen widgets - Dynamic Island display - Unlimited history Includes a 3-day free trial. Terms: https://halfcaff.decoy284.net/terms/ Privacy Policy: https://halfcaff.decoy284.net/privacy/
Screenshots
Verdict
The clearest difference is update cadence: HalfCaff at every 6 days against Caffeine Tracker's every 2 months. 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
Both are free to download. Caffeine Tracker sells 3 in-app purchases, starting at $2.99 per 7 days and HalfCaff 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 Tracker ships an update every 2 months, HalfCaff every 6 days. The most recent releases landed on July 31, 2026 and September 22, 2026 respectively.
| Parameter | Caffeine Tracker | HalfCaff |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 18.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Pawel Karniej | Yutaro Koide |
In-app purchases
Caffeine Tracker
- MoonLatte Weekly$2.997 Days
- Moon Latte Yearly$9.991 Year
- Lifetime Premium Access$19.99
HalfCaff
- Weekly3 Days trial$1.997 Days
- Monthly3 Days trial$5.991 Month
- Yearly3 Days trial$22.991 Year









