CaffLog vs Caffie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CaffLog
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CaffLog is an app for managing your caffeine intake smartly. Easily log your daily caffeine consumption and visualize your body's caffeine levels in real time. CaffLog supports your caffeine management goals, whatever they may be. ◆ Who This App Is For 【Boost Your Performance】 For those who want to use caffeine effectively to enhance productivity at work or while studying. 【Cut Back or Limit Caffeine】 For those looking to control their intake for health reasons, pregnancy, or breastfeeding. 【Understand Sleep Impact】 For those who want to track how caffeine affects their sleep and find the right timing. 【Discover Your Patterns】 For those who want to visualize their intake trends and understand their habits objectively. ◆ Key Features 【Caffeine Intake Log】 Easily record caffeinated drinks like coffee, tea, and energy drinks. 【Real-Time Caffeine Levels】 Check your estimated current caffeine levels in your body at any time. 【Heatmap Review】 Visualize your daily intake patterns with a heatmap. Spot your trends at a glance. 【Customize Your Home Screen】 Decorate your home with cute items like coffee beans, donuts, and cookies. Choose from wood, stone, or solid backgrounds and pick your accent color to make the space truly your own. 【Cute & Easy-to-Use Design】 A warm, friendly design that makes daily logging enjoyable. ◆ CaffLog Premium (Optional) CaffLog is free to use. CaffLog Premium unlocks additional convenient features. 【CaffLog Premium】 1. Customize caffeine half-life 2. Customize decorations, backgrounds, and themes 3. Ad-free experience 【Pricing】 Monthly Plan: $2.99 Auto-renews monthly from the date of purchase. 【Auto-Renewal Details】 Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. 【Payment】 Payment will be charged to your Apple ID.
Caffie
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Make caffeine your ally for peak performance and deep sleep. An intuitive tracker app that accurately simulates your "current caffeine levels" and exactly "when it will clear" from your system. Coffee and energy drinks are amazing tools for boosting focus, but consuming them at the wrong time or in the wrong amounts can severely degrade your sleep quality at night. With Caffie, you can see at a glance when caffeine will leave your body, allowing you to plan the perfect time to relax. [Core Features] • Real-Time Level Display: Visualize your naturally decreasing caffeine levels over time with an intuitive graph. • Smart Insights: Receive precise advice based on your current levels, such as "Optimal alertness" or "Avoid further intake." • Clearance Prediction: Automatically calculates the time until your caffeine level "down to adequate level" and "reaches near zero." • Simple Logging: Intuitively log your drinks with a single tap. [Caffine Pro (Premium Features)] Unlock all features permanently for the price of a single cup of coffee. • Home Screen Widget: Check your current caffeine levels anytime without opening the app. • All-Time History Data: Look back at all your past records and analyze your caffeine habits. • Unlimited Custom List: Add your frequently consumed drinks without any limits. *Disclaimer The calculations for half-life and remaining body levels provided by this app are estimates based on general scientific data. They are not intended to provide medical advice. Please consult a medical professional for accurate judgments regarding your health. Caffine is a smart tracker that visualizes your remaining caffeine levels in real time and supports optimal caffeine control. Since you can also check your daily caffeine intake history, you can thoroughly manage your caffeine with just this one app.
Screenshots
Verdict
The clearest difference is ads: Caffie at none against CaffLog's shown. CaffLog's advantage is update cadence (weekly vs every 4 months) and iOS requirement (15.0 vs 18.0). On price, 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. CaffLog sells 1 in-app purchase, starting at $2.99 per month and Caffie sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CaffLog ships an update weekly, Caffie every 4 months. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.
| Parameter | CaffLog | Caffie |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Weekly — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 70 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | Haruya Oyama | Kosuke Sakuma |
In-app purchases
CaffLog
- CaffLog Premium7 Days trial$2.991 Month
Caffie
- Caffie Pro$4.99








